2015 BMW 4 Series Gran Coupe Road Test Specs | Edmunds.com
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2015 BMW 4 Series Gran Coupe - Road Test Specs

2015 BMW 4 Series Gran Coupe Sedan

(2.0L 4-cyl. Turbo 8-speed Automatic)

Vehicle

Year Make Model2015 BMW 4 Series Gran Coupe 428i 4dr Sedan (2.0L 4cyl Turbo 8A)
Vehicle TypeRWD 4dr 5-passenger Sedan
Base MSRP$41,250
Options on test vehicleM Sport Pacakge, Dynamic Handling Package
As-tested MSRP$52,300

Drivetrain

ConfigurationLongitudinal, front-engine , rear-wheel drive
Engine typeInline-4
Displacement (cc/cu-in)1,997/122
Block/head materialAluminum/aluminum
ValvetrainDouble overhead camshaft
Compression ratio (x:1)10.0
Redline, indicated (rpm)7,000
Fuel cutoff/rev limiter (rpm)7,000
Horsepower (hp @ rpm)240 @ 5,000
Torque (lb-ft @ rpm)255 @ 1,250
Fuel typePremium unleaded (required)
Transmission type8-speed Automatic
Transmission ratios (x:1)I: 4.71; II: 3.14; III: 2.11; IV: 1.67; V: 1.29; VI: 1.00; VII: 0.84; VIII: 0.67; R: 3.30
Final-drive ratio (x:1)3.15

Chassis

Suspension, frontMacPherson strut
Suspension, rearMulti-link
Steering typeElectric speed-proportional power steering
Steering ratio (x:1)15.0
Tire make and modelBridgestone Potenza S001
Tire typeAsymmetrical summer, run-flat
Tire size, front225/45R18
Tire size, rear255/40R18
Wheel size18-by-7.5 inches front and rear
Wheel materialAlloy
Brakes, frontOne-piece ventilated steel discs with 4-piston fixed calipers
Brakes, rearOne-piece ventilated steel discs with 2-piston fixed calipers

Track Test Results

Acceleration, 0-30 mph (sec.)2.2
0-45 mph (sec.)3.7
0-60 mph (sec.)5.7
0-75 mph (sec.)8.4
1/4-mile (sec. @ mph)14.1 @ 96.2
0-60 with 1 foot of rollout (sec.)5.4
0-30 mph, trac ON (sec.)2.8
0-45 mph, trac ON (sec.)4.4
0-60 mph, trac ON (sec.)6.5
0-75 mph, trac ON (sec.)9.2
1/4-mile, trac ON (sec. @ mph)14.6 @ 96.4
0-60, trac ON with 1 foot of rollout (sec.)6.4
Braking, 30-0 mph (ft.)28
60-0 mph (ft.)115
Slalom, 6 x 100 ft. (mph)66.6
Slalom, 6 x 100 ft. (mph) ESC ON65.1
Skid pad, 200-ft. diameter (lateral g).84
Skid pad, 200-ft. diameter (lateral g) ESC ON.83
Sound level @ idle (dB)40.0
@ Full throttle (dB)72.4
@ 70 mph cruise (dB)62.5

Test Driver Ratings & Comments

Acceleration commentsAfter going through the various drive modes (Eco, Comf, Sport, Sport Plus), and the transmission options, (Drive, Sport, Manual), I discovered a dedicated Launch Mode indicated on the instrument panel. It's effective and cuts nearly a full second from acceleration times across the board without wheelspin. Also, I discovered the transmission short shifts in Drive in modes other than Sport or Sport Plus where it will upshift at the indicated redline rather than 500 rpm shy as in other modes. It also will hold gears (without upshifting) in Sport or Sport Plus. All that all said, what an engine! This should in no way be considered a consolation engine. There's plenty of grunt down low in the rev range and exhilarating power as the tachometer swings up toward the redline. Strange how in this application (4-door 428), it lacks the raspy intake/exhaust that the 2-door 428i had. Also, it's a few tenths slower across the board, but only 138 pounds (as tested) heavier.
Braking commentsReasonably short and consistent stopping distances, near-zero reduction in effectiveness and high-thermal capacity. Modest nose dive but no wander or wiggle under full-panic stop simulation.
Handling commentsIn contrast to the two-door 428i Coupe that was overflowing with confidence AND predictable handling at the limit, the four-door Gran Coupe matches the confidence, but lacks the predictability. I found I was "chasing" the car's responses rather than flowing with them. Steering weight was appropriate, response was crisp, but what the car did thereafter was not constant from cone to cone. Also, I found the throttle response to be less linear and more apt to surge which also made the car less predictable.

Testing Conditions

Test date9/23/2014
Elevation (ft.)1,121
Temperature (F)87.2
Relative humidity (%)32.0
Barometric pressure (in. Hg)28.76
Wind (mph, direction)2.6, headwind
Odometer (mi.)1,877
Fuel used for test91-octane gasoline
As-tested tire pressures, f/r (psi)32/35

Fuel Consumption

EPA fuel economy (mpg)27 combined (23 city/34 highway)
Fuel tank capacity (U.S. gal.)15.8
Driving range (mi.)537.2

Dimensions & Capacities

Curb weight, mfr. claim (lbs.)3,610
Curb weight, as tested (lbs.)3,655
Weight distribution, as tested, f/r (%)48.8/51.2
Length (in.)182.6
Width (in.)71.9
Height (in.)54.7
Wheelbase (in.)110.6
Track, front (in.)60.8
Track, rear (in.)62.8
Turning circle (ft.)37.1
Legroom, front (in.)42.2
Legroom, rear (in.)33.7
Headroom, front (in.)39.8
Headroom, rear (in.)37.2
Shoulder room, front (in.)54.8
Shoulder room, rear (in.)54.3
Seating capacity5
Trunk volume (cu-ft)17
behind 2nd row (cu-ft)45.5
GVWR (lbs.)4,605
Payload, mfr. max claim (lbs.)910
Ground clearance (in.)5.1
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