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Follow-Up Test: 2007 Lotus Exige S

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    2007 Lotus Exige Picture

    You and your 2007 Lotus Exige S will be happiest while staying busy on winding back roads. | September 15, 2009

Road Test

Follow-Up Test: 2007 Lotus Exige S

Success requires sacrifice

    1 Rating
    When we first had a turn at the wheel of the 2007 Lotus Exige S, we recalled one of our visits with Lotus engineer Roger Becker. He told us that "Exige" is a French word that roughly translates into "brat," someone demanding or insistent. A pretty accurate description of this car, we think.

    But there's another phrase that comes to mind: "Le succès exige; le sacrifice." Success demands sacrifice.

    Corny as it sounds, this motivational mantra might well be the Lotus corporate mission statement, not to mention a capsule review of the supercharged 2007 Lotus Exige S.

    Less is more
    The Lotus mantra is actually remembered as "simplificate, then add lightness," a phrase that Lotus founder Colin Chapman picked up during his training as an aeronautical engineer in Britain. It became an obsession with Chapman, and it led him to the innovative insight that a lightweight car steers, handles and brakes better than a heavyweight one, and it also doesn't need a big engine to be frighteningly quick.

    This concept has been faithfully executed in the Lotus Elise and Exige. Essentially these are street-legal racecars, and they weigh but 1,980 and 2,012 pounds, respectively. A mere 190-horsepower is enough to give these diminutive siblings amazing performance.

    Yet the Lotus chassis beneath these cars is so supremely capable that it leaves us thinking, "If only it had more horsepower." In creating the 2007 Lotus Exige S, Lotus engineers show us they've been thinking along the very same lines.

    So a Roots-type supercharger has been plumbed up to the 1.8-liter Toyota 2ZZ engine. The Exige's prominent roof snorkel now directs air to an air-to-air intercooler mounted atop the four-cylinder. In addition, revisions to the Lotus engine-management software help thoroughly exploit the newly supercharged engine's system for variable valve timing and lift.

    More is more — if it's horsepower
    The supercharger and intercooler add 40 pounds to the car — something weight-obsessed Lotus doesn't take, er, lightly. Not to worry. At 2,052 pounds, this Exige S is still a flyweight. The payoff is the resulting jump in power from 190 hp to 220. And we're sure that Mr. Chapman would excuse the bloat, as the weight-to-power ratio plummets from 10.6 pounds/hp to just 9.3 pounds/hp.

    At the track, our test car launched hard and pulled strong all the way to the rev limiter, which isn't surprising since the horsepower peak coincides with the 8,000-rpm redline. Sixty mph came and went in 4.2 seconds, with the Exige S ripping through the quarter-mile in 12.8 seconds at 105.5 mph. Our previous test of an unblown Exige produced a 0-60 time of 5.0 seconds, with the quarter-mile coming up in 13.5 seconds.

    Supercharging improves the engine's torque output by 20 percent, and this turns out to be an even bigger deal. The peak output of 165 pound-feet at 5,500 rpm might not sound like much, but at just 2,000 revs the Exige S engine makes about as much torque as the normally aspirated version does at its peak.

    On sinuous mountain roads, the Exige S doesn't force you to constantly change down a gear and rev the whee out of the motor whenever you exit a tight corner. This characteristic also helps the supercharged Toyota four-cylinder deliver improved fuel economy around town. Despite a massive performance boost, its EPA city rating actually climbs from 22 to 23 mpg. Highway thrift remains unchanged at 29 mpg.

    Enlightened suspension
    Track testing confirmed our back-road driving impressions, as the cornering attitude of the Exige S proves easy to adjust by tickling the throttle. In fact, the Exige S set a new record in our slalom of 74.0 mph, besting the old record of 73.4 mph set by a standard Exige.

    Super-sticky Yokohama Advan Neova A048 LTS tires further help our S to 0.96g on the skid pad. These ultrahigh-performance tires are DOT rated, but just barely. With a tread-wear rating of only 60, we don't expect these track-optimized items to last very long.

    Through it all, the steering wheel of the Exige S communicates every detail of what the tires are experiencing. The key here is the simple, unassisted rack-and-pinion steering, a rarity these days. We've all become so conditioned to the artificial feel of hydraulically assisted steering that unassisted steering seems odd at first. But once you sweep into that first corner with a Lotus, you'll never want anything else. And since there are only 770 pounds over the front axle of the Exige S, the steering effort in parking lots isn't any trouble.

    The surprising bit is that the Exige S's balanced performance in the corners comes from a chassis without a rear stabilizer bar. Careful suspension design and expert tuning of the springs and Bilstein monotube dampers make it possible to achieve a good handling balance without it — a little weight-saving measure of which Colin Chapman would no doubt approve.

    Our test car also lacked the torque-sensing limited-slip differential, a $1,790 option that Lotus engineers say is unnecessary unless you plan to use the Exige S for autocross events.

    For those who plan on serious track usage, Lotus offers a Track Pack. This $2,495 option consists of 10-way adjustable Bilstein dampers, height-adjustable spring seats, a five-way adjustable front stabilizer bar and suspension reinforcements. The car is also ready for the installation of track-specification safety equipment.

    But our experience tells us that if you don't take your Exige S to the track and don't know much about suspensions, you shouldn't bother. Our car didn't have it, and not one of our editors felt the least bit deprived. Matthew Becker, the suspension development engineer for the Exige, tells us that the standard setup already falls in the middle of the Track Pack's adjustment range.

    The sacrifice part
    Of course there is a practical downside to extreme lightweight engineering. The bonded aluminum chassis used in the Exige S is a 150-pound marvel. But to be that light, the sills are high and wide and there isn't a door cutout.

    That makes squeezing into the cockpit an exercise in human origami, as you must fold yourself between the sill and the ultralow roof and then deposit your backside ungracefully into the seat. Once inside, the Exige S looks and feels quite like a racecar, as the aluminum chassis members are exposed everywhere.

    The confines of the cockpit are tight even once you're inside. You'll need a pair of narrow shoes (Chapman's feet were famously small) to keep from inadvertently stepping onto two pedals at once. The legroom is sufficient, but the molded driver seat is one-way adjustable — it manually slides back and forth. Passengers sit in a fixed seat with zero adjustments, while a rally-inspired, floor-mounted foot brace keeps them from flailing about.

    Our Exige S was equipped with the optional $1,350 Touring Pack, which adds carpet on the aluminum floor, leather upholstery for the seats and doors, additional sound insulation and an upgraded stereo. Surprisingly, every Exige comes standard with air-conditioning, and you actually have to pay $250 if you want to delete it. (What would Chapman think?)

    Once you fire up the engine, you're introduced to yet another category of sacrifice required in an authentic racecar. Everything buzzes and vibrates, as the suspension bushings are pretty hard in the name of cornering performance and they transmit more information about the road surface than you want to know. Our Exige S produced the highest sound readings at idle and full throttle that we've ever measured in a street car, and the engine note isn't particularly pleasing, either. Earplugs aren't out of the question.

    One for the road
    To get a 2007 Lotus Exige S, you'll have to sacrifice at least $57,915. That's $6,000 more than a standard Exige, but the performance jump is well worth it. Our moderately optioned car came to $61,995. But $1,200 of that went for the Laser Blue "Lifestyle" paint, and $995 more bought a Starshield protective appliqué over the nose. A $495 traction control system and the aforementioned Touring Pack complete the list.

    Our man Colin Chapman has become famous for his adopted mantra, "Simplificate, then add lightness." The trendy success of Lotus in recent years might be traced to a new generation learning to achieve performance through light weight.

    Yet Chapman has also become known outside motoring circles for another aphorism: "The secret of a successful marriage is not to be at home too much."

    How does this apply to this utterly thrilling sports car?

    Well, the secret of a successful relationship with a 2007 Lotus Exige S is not to drive it too much.

    The manufacturer provided Edmunds this vehicle for the purposes of evaluation.

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    Speed Read

    Featured Specs

    • 1.8-liter supercharged inline-4 engine
    • 220 horsepower
    • 2,052 pounds
    • 6-speed manual transmission

    What Works

    Outstanding steering and handling. Mega-grip. Startlingly quick acceleration. Eyeball-stretching brakes.

    What Needs Work

    Interior noise, ride comfort, and interior appointments have been deliberately sacrificed to varying degrees in the name of authentic racecar performance.

    Tags

    Specs & Performance

    Vehicle
    Model year2007
    MakeLotus
    ModelExige
    StyleS 2dr Coupe (1.8L 4cyl S/C 6M)
    Base MSRP$57,915
    As-tested MSRP$61,995
    Drivetrain
    Drive typeRear-wheel drive
    Engine typeSupercharged inline-4
    Displacement (cc/cu-in)1796cc (110 cu-in)
    Valvetraindouble overhead camshaft
    Compression ratio (x:1)11.5
    Horsepower (hp @ rpm)220 @ 8,000
    Torque (lb-ft @ rpm)165 @ 5,500
    Transmission type6-speed manual
    Chassis
    Suspension, frontDouble wishbone, coil springs, monotube shock absorbers, and stabilizer bar
    Suspension, rearDouble wishbone, coil springs, and monotube shock absorbers
    Steering typeUnassisted rack-and-pinion
    Turning circle (ft.)32.8
    Tire brandYokohama
    Tire modelAdvan A048LTS
    Tire typeperformance
    Tire size, front195/50R16 84W
    Tire size, rear225/45R17 90W
    Wheel size16 X 6.5 front - 17 X 7.5 rear
    Wheel materialalloy
    Brakes, frontFront ventilated disc - rear ventilated disc
    Brakes, rearventilated disc
    Track Test Results
    0-45 mph (sec.)2.8
    0-60 mph (sec.)4.2
    0-75 mph (sec.)6.3
    1/4-mile (sec. @ mph)12.8 @ 105.5
    Braking, 30-0 mph (ft.)27
    60-0 mph (ft.)111
    Slalom, 6 x 100 ft. (mph)74
    Skid pad, 200-ft. diameter (lateral g)0.96
    Sound level @ idle (dB)56.3
    @ Full throttle (dB)90.9
    @ 70 mph cruise (dB)75.6
    Test Driver Ratings & Comments
    Acceleration commentsLots of wheelspin is quickest, so the traction control needs to be shut off. The best launch technique is to hold engine at 6,000 rpm and sidestep the clutch. Wait until the vehicle speed catches up to the wheel speed, then upshift.
    Braking ratingExcellent
    Braking commentsSolid, consistent pedal, which requires high effort. No fade.
    Handling ratingExcellent
    Handling commentsThe Exige S has the same brilliant communicative non-power steering as the Exige, but it's turned up to eleven. This car posted a new slalom record, beating the standard Exige by 0.6 mph. On the skid pad, it has better balance that the non-boosted Exige. Thanks to the added power and torque, it's easier to influence the chassis with the throttle.
    Testing Conditions
    Elevation (ft.)1121
    Temperature (°F)66.2
    Wind (mph, direction)1
    Fuel Consumption
    EPA fuel economy (mpg)23 city/29 highway
    Edmunds observed (mpg)22.2 combined
    Fuel tank capacity (U.S. gal.)10.6
    Dimensions & Capacities
    Curb weight, mfr. claim (lbs.)2,077 (2,052 as tested)
    Length (in.)149.5
    Width (in.)68.0
    Height (in.)45.6
    Wheelbase (in.)90.5
    Track, front (in.)57.4
    Track, rear (in.)59.3
    Legroom, front (in.)43.5
    Legroom, rear (in.)N/A
    Headroom, front (in.)38.5
    Headroom, rear (in.)N/A
    Seating capacity2
    Cargo volume (cu-ft)4.0 (110 pounds maximum)
    Max. cargo volume, seats folded (cu-ft)N/A
    Warranty
    Bumper-to-bumper3 years/36,000 miles
    Powertrain3 years/36,000 miles
    Corrosion8 years/Unlimited miles
    Roadside assistanceNot available
    Free scheduled maintenanceNot available
    Safety
    Front airbagsStandard
    Side airbagsNot available
    Head airbagsNot available
    Antilock brakes4-wheel ABS
    Electronic brake enhancementsElectronic brakeforce distribution
    Traction controlOptional
    Stability controlNot available
    Rollover protectionNot available
    Emergency assistance systemNot available
    NHTSA crash test, driverNot tested
    NHTSA crash test, passengerNot tested
    NHTSA crash test, side frontNot tested
    NHTSA crash test, side rearNot tested
    NHTSA rollover resistanceNot tested
    CollapseSpecs and Performance Expand Collapse

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