| Vehicle |
2010 Rolls-Royce Phantom Drophead Coupe |
1998 Pontiac Firebird 2dr Conv Firebird |
| General |
| Body Style |
Convertible/Luxury Coupe,CVT |
2 Door Convertible |
| Drivetrain |
n/a |
Rear Wheel Drive |
| EPA Classification |
COMPACT |
Subcompact |
| Turbo |
N |
n/a |
| Vehicle |
n/a |
Firebird |
| Width, Max w/o mirrors (in) |
n/a |
74.5 |
| Battery |
| Cold Cranking Amps @ 0° F |
n/a |
690 |
| Maximum Capacity (amps) |
n/a |
105 |
| 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 |
11.9 x 1.02 |
| Rotor Diam x Thickness (in) |
n/a |
11.8 x 1.27 |
| Type of Brakes |
n/a |
Power |
| Drive Train |
| City MPG |
11 |
n/a |
| Combined MPG |
14 |
n/a |
| Displacement (CC) |
6749 |
3.8L/231 |
| Driveline |
RWD |
n/a |
| EPA Fuel Economy Est (MPG) |
n/a |
19 |
| Final Drive Ratio |
3.46 |
3.23 |
| Fuel Capacity (gal) |
21.1 |
15.5 |
| Fuel System |
FI |
SFI |
| Fuel Type |
Gas |
n/a |
| Gas Guzzler Tax |
$3,000 |
n/a |
| Highway MPG |
18 |
n/a |
| Horsepower @ RPM |
453@5350 |
200 @ 5200 |
| Hwy EPA Fuel Economy Estimate (MPG) |
n/a |
30 |
| PowerToWeightRatio |
12.9 |
n/a |
| RPM @ Peak Horsepower |
5350 |
n/a |
| Standard Transmission |
6 Speed Automatic |
n/a |
| Torque @ RPM |
531@3500 |
225 @ 4000 |
| Total System Capacity (qts) |
n/a |
13.6 |
| Transmission Speeds |
6 |
5 |
| Transmission Type |
A |
Manual w/OD |
| Type of Engine |
6.75L V12 |
Gas V6 |
| Valves |
48 |
n/a |
| Exterior |
| Base Curb Weight (lb) |
n/a |
3463 |
| Curb weight (lbs) |
5886 |
n/a |
| Overall Height (in) |
62.2 |
n/a |
| Overall Length (in) |
220.8 |
193.4 |
| Overall Width (in) |
78.2 |
52.7 |
| Wheelbase (in) |
130.7 |
101.1 |
| Interior - Cargo - Carrying |
| Liftover Height (in) |
n/a |
35.1 |
| Trunk Volume (cu ft) |
11.1 |
12.9 |
| Interior - Passengers |
| Headroom front (in) |
38.6 |
37.2 |
| Headroom rear (in) |
37.1 |
n/a |
| Hip room front (in) |
n/a |
52.8 |
| Leg room front (in) |
40.9 |
43.0 |
| Leg room rear (in) |
36.8 |
n/a |
| Passenger Volume |
94 |
84.0 |
| Seating Capacity - Maximum |
4 |
n/a |
| Seating capacity - Standard |
4 |
4 |
| Second seat head room (in) |
n/a |
35.3 |
| Second seat hip room (in) |
n/a |
44.4 |
| Second seat leg room (in) |
n/a |
28.9 |
| Second seat shoulder room (in) |
n/a |
55.8 |
| Shoulder room front (in) |
58.7 |
57.4 |
| Shoulder room rear (in) |
51.1 |
n/a |
| Suspension |
| Front suspension |
Ind |
w/Coil Springs |
| Ground Clearance (in) |
n/a |
4.0 |
| Rear shock absorber diameter (mm) |
n/a |
36 |
| Rear stabilizer bar diameter (in) |
n/a |
0.59 |
| Rear Suspension |
Ind |
Salisbury Axle |
| Rear suspension type line 2 |
n/a |
w/Coil Springs |
| Shock Absorber Diameter (mm) |
n/a |
46 |
| Stabilizer Bar Diameter (in) |
n/a |
1.10 |
| Track Front |
66.4 |
60.7 |
| Track Rear |
65.8 |
60.6 |
| Tires and Wheels |
| Rear tire size |
n/a |
P215/60R16 |
| Rear wheel size (in) |
n/a |
16 x 7.5 |
| Rear wheel type |
n/a |
Aluminum |
| Spare tire size |
n/a |
T135/60R16 |
| 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 |
2.67 |
| Steering Diameter Left |
43.0 |
41.9 |
| Steering Diameter Right |
43.0 |
42.5 |
| Warranty |
| Powertrain Time (Months) |
48 |
n/a |
| Rust Time (Months) |
72 |
n/a |
| Warranty - Basic Time (Months) |
48 |
n/a |
Compar-A-Graphs: Rank-By-Specs or 4-Car Comparison 
Click to print