2008 BMW 135i Coupe Road Test Specs | Edmunds.com

2008 BMW 1 Series - Road Test Specs

2008 BMW 1 Series Coupe

(3.0L 6-cyl. Twin-turbo 6-speed Manual)


Model year2008
Model1 Series
Style135i 2dr Coupe (3.0L 6cyl Turbo 6M)
Base MSRP$35,675
Options on test vehicleiPod and USB Adapter ($400), Boston Leather ($1,450), Cold Weather Package ($600), Sport Package ($1,000)
As-tested MSRP$39,125


Drive typeRear-wheel drive
Engine typeInline-6 with twin turbochargers
Displacement (cc/cu-in)2,979/182
Block/head materialAluminum
ValvetrainDouble overhead camshafts, four valves per cylinder, variable intake and exhaust valve timing
Compression ratio (x:1)10.2
Redline (rpm)7,000
Horsepower (hp @ rpm)300 @ 5,800
Torque (lb-ft @ rpm)300 @ 1,400
Transmission type6-speed manual
Transmission and axle ratios (x:1)I = 4.06; II = 2.40; III = 1.58; IV = 1.19; V = 1.00; VI = 0.87; R = 3.68; Diff = 3.08


Suspension, frontIndependent, MacPherson struts, coil springs, dual-pivot split lower control arms and stabilizer bar
Suspension, rearIndependent, multilink, coil springs and stabilizer bar
Steering typeHydraulic-assist speed-proportional power steering
Steering ratio (x:1)16:1
Tire brandBridgestone
Tire modelPotenza RE050A
Tire typeSummer Performance, run-flat
Tire size, front215/40R18 85Y
Tire size, rear245/35R18 88Y
Wheel size18 by 7.5 front -- 18 by 8.5 rear
Wheel materialAlloy
Brakes, front13.3-inch ventilated discs, 6-piston fixed calipers
Brakes, rear12.8-inch ventilated discs, 2-piston fixed calipers

Track Test Results

0-45 mph (sec.)3.4
0-60 mph (sec.)5.0
0-75 mph (sec.)7.4
1/4-mile (sec. @ mph)13.3 @ 104.0
0-60 with 1 foot of rollout (sec.)4.7
Braking, 30-0 mph (ft.)28
60-0 mph (ft.)109
Slalom, 6 x 100 ft. (mph)72.4
Skid pad, 200-ft. diameter (lateral g)0.89
Sound level @ idle (dB)47.7
@ Full throttle (dB)76.8
@ 70 mph cruise (dB)68.2

Test Driver Ratings & Comments

Acceleration commentsBoiling the tires is easy with this engine, so managing wheelspin carefully is critical to a fast launch. Our fastest launch came with almost no wheelspin, feeding in the clutch at 3,500 rpm.
Braking ratingVery Good
Braking commentsQuick and effective engagement. Typical BMW feel -- immediate effectiveness with consistent stopping performance.
Handling ratingVery Good
Handling commentsControl feel is virtually identical to 335i, but chassis is quicker responding and more nimble. Handling numbers are marginally better than 335i.

Testing Conditions

Elevation (ft.)421
Temperature (F)72.1
Wind (mph, direction)5.7

Fuel Consumption

EPA fuel economy (mpg)17 city/25 highway
Edmunds observed (mpg)20.8
Fuel tank capacity (U.S. gal.)14.0

Dimensions & Capacities

Curb weight, mfr. claim (lbs.)3,373
Curb weight, as tested (lbs.)3,399
Weight distribution, as tested, f/r (%)52/48
Length (in.)172.2
Width (in.)68.8
Height (in.)55.4
Wheelbase (in.)104.7
Track, front (in.)57.9
Track, rear (in.)58.9
Turning circle (ft.)35.1
Legroom, front (in.)41.4
Legroom, rear (in.)32.0
Headroom, front (in.)37.9
Headroom, rear (in.)37.1
Shoulder room, front (in.)56.0
Shoulder room, rear (in.)55.0
Seating capacity4
Cargo volume (cu-ft)13.1


Bumper-to-bumper4 years/50,000 miles
Powertrain4 years/50,000 miles
Corrosion12 years/Unlimited miles
Roadside assistance4 years/Unlimited miles
Free scheduled maintenance4 years/50,000 miles


Front airbagsStandard
Side airbagsStandard dual front
Head airbagsStandard front and rear
Knee airbagsNot available
Antilock brakes4-wheel ABS
Electronic brake enhancementsBrake assist, electronic brakeforce distribution
Traction controlStandard
Stability controlStandard
Rollover protectionStandard
Tire-pressure monitoring systemDirect tire-pressure monitoring
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

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