| Vehicle |
2017 Alfa Romeo 4C Coupe Coupe |
1998 Buick Riviera 2dr Cpe |
| General |
| Body Style |
Coupe,Two-seater Passenger Car |
2 Door Coupe |
| Drivetrain |
n/a |
Front Wheel Drive |
| EPA Classification |
Two-Seaters |
Mid-Size |
| Vehicle |
n/a |
Riviera |
| Width, Max w/o mirrors (in) |
n/a |
75.0 |
| Battery |
| Cold Cranking Amps @ 0° F |
n/a |
970 |
| Maximum Capacity (amps) |
n/a |
140 |
| Brake System |
| ABS System |
n/a |
4 Wheel |
| Brakes Front |
n/a |
Yes |
| Brakes Rear |
n/a |
Yes |
| Rear disc brake rotor diameter x thickness (in) |
n/a |
10.94 x 0.43 |
| Rotor Diam x Thickness (in) |
n/a |
11.85 x 1.26 |
| Type of Brakes |
n/a |
Power |
| Drive Train |
| City MPG |
24 |
n/a |
| Combined MPG |
28 |
n/a |
| Displacement (CC) |
1.7 L/106 |
3.8L/231 |
| Driveline |
Rear Wheel Drive |
n/a |
| EPA Fuel Economy Est (MPG) |
n/a |
18 |
| Final Drive Ratio |
4.12 |
2.93 |
| Fuel Capacity (gal) |
10.5 |
18.5 |
| Fuel System |
Sequential MPI |
SFI |
| Fuel Type |
Intercooled Turbo Premium Unleaded I-4 |
n/a |
| Highway MPG |
34 |
n/a |
| Horsepower @ RPM |
237 @ 6000 |
240 @ 5200 |
| Hwy EPA Fuel Economy Estimate (MPG) |
n/a |
27 |
| Torque @ RPM |
258 @ 2200 |
280 @ 3600 |
| Total System Capacity (qts) |
n/a |
13.2 |
| Transmission Speeds |
6 |
4 |
| Transmission Type |
Auto-Shift Manual w/OD |
Automatic w/OD, |
| Transmission Type Description Line 2 |
n/a |
Electronic |
| Type of Engine |
4 Cylinder Engine/Turbocharged |
Supercharged Gas V6 |
| Exterior |
| Base Curb Weight (lb) |
n/a |
3699 |
| Curb weight (lbs) |
2465 |
n/a |
| Overall Height (in) |
46.6 |
n/a |
| Overall Length (in) |
157 |
207.2 |
| Overall Width (in) |
73.5 |
54.6 |
| Wheelbase (in) |
93.7 |
113.8 |
| Interior - Cargo - Carrying |
| Liftover Height (in) |
n/a |
31.7 |
| Trunk Volume (cu ft) |
n/a |
17.4 |
| Interior - Passengers |
| Headroom front (in) |
38 |
38.2 |
| Hip room front (in) |
n/a |
54.5 |
| Leg room front (in) |
42.7 |
42.6 |
| Passenger Volume |
n/a |
99.5 |
| Seating Capacity - Maximum |
2 |
n/a |
| Seating capacity - Standard |
2 |
5 |
| Second seat head room (in) |
n/a |
36.2 |
| Second seat hip room (in) |
n/a |
52.7 |
| Second seat leg room (in) |
n/a |
37.1 |
| Second seat shoulder room (in) |
n/a |
57.8 |
| Shoulder room front (in) |
49.8 |
57.8 |
| Suspension |
| Front suspension |
Double Wishbone |
w/Coil Springs |
| Ground Clearance (in) |
n/a |
5.4 |
| Rear shock absorber diameter (mm) |
n/a |
25 |
| Rear stabilizer bar diameter (in) |
n/a |
0.67 |
| Rear Suspension |
Strut |
Semi Trailing Arm |
| Rear suspension type line 2 |
n/a |
w/Coil Springs |
| Shock Absorber Diameter (mm) |
n/a |
35 |
| Stabilizer Bar Diameter (in) |
n/a |
1.1 |
| Track Front |
64.5 |
62.5 |
| Track Rear |
63.1 |
62.6 |
| Tires and Wheels |
| Rear tire size |
n/a |
P225/60R16 |
| Rear wheel size (in) |
n/a |
16 x 6.5 |
| Rear wheel type |
n/a |
Aluminum |
| Spare tire size |
n/a |
T125/70R16 |
| Spare wheel size (in) |
n/a |
16 x 4 |
| Towing |
| Dead Weight Hitch-Max. Tongue Load |
n/a |
100 |
| Tow Capacity Standard |
n/a |
1000 |
| Turning Radius |
| Lock to Lock Turns |
n/a |
3.15 |
| Steering Diameter Left |
40.5 |
39.1 |
| Steering Diameter Right |
n/a |
40.9 |
| Warranty |
| Powertrain Miles |
50,000 |
n/a |
| Powertrain Time (Months) |
48 |
n/a |
| Warranty - Basic Miles |
50,000 |
n/a |
| Warranty - Basic Time (Months) |
48 |
n/a |
Compar-A-Graphs: Rank-By-Specs or 4-Car Comparison 
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