1971 Cadillac Eldorado vs. 2003 Pontiac Bonneville
To start off, 2003 Pontiac Bonneville is newer by 32 year(s). Which means there will be less support and parts availability for 1971 Cadillac Eldorado. In addition, the cost of maintenance, including insurance, on 1971 Cadillac Eldorado would be higher. At 8,190 cc (8 cylinders), 1971 Cadillac Eldorado is equipped with a bigger engine. In terms of performance, 2003 Pontiac Bonneville (275 HP @ 5600 RPM) has 52 more horse power than 1971 Cadillac Eldorado. (223 HP @ 4400 RPM) In normal driving conditions, 2003 Pontiac Bonneville should accelerate faster than 1971 Cadillac Eldorado. With that said, vehicle weight also plays an important factor in acceleration. 1971 Cadillac Eldorado weights approximately 391 kg more than 2003 Pontiac Bonneville.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1971 Cadillac Eldorado (744 Nm @ 3000 RPM) has 446 more torque (in Nm) than 2003 Pontiac Bonneville. (298 Nm @ 4000 RPM). This means 1971 Cadillac Eldorado will have an easier job in driving up hills or pulling heavy equipment than 2003 Pontiac Bonneville.
Compare all specifications:
| 1971 Cadillac Eldorado | 2003 Pontiac Bonneville | |
| Make | Cadillac | Pontiac |
| Model | Eldorado | Bonneville |
| Year Released | 1971 | 2003 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 8190 cc | 4565 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 223 HP | 275 HP |
| Engine RPM | 4400 RPM | 5600 RPM |
| Torque | 744 Nm | 298 Nm |
| Torque RPM | 3000 RPM | 4000 RPM |
| Engine Bore Size | 109.2 mm | 93.1 mm |
| Engine Stroke Size | 109.3 mm | 84 mm |
| Engine Compression Ratio | 8.5:1 | 10.0:1 |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 2110 kg | 1719 kg |
| Vehicle Length | 5630 mm | 5150 mm |
| Vehicle Width | 2040 mm | 1890 mm |
| Vehicle Height | 1370 mm | 1440 mm |
| Wheelbase Size | 3210 mm | 2790 mm |
| Fuel Tank Capacity | 100 L | 70 L |
