2005 Cadillac XLR vs. 1974 Porsche 911
To start off, 2005 Cadillac XLR is newer by 31 year(s). Which means there will be less support and parts availability for 1974 Porsche 911. In addition, the cost of maintenance, including insurance, on 1974 Porsche 911 would be higher. At 4,564 cc (8 cylinders), 2005 Cadillac XLR is equipped with a bigger engine. In terms of performance, 2005 Cadillac XLR (322 HP @ 6400 RPM) has 157 more horse power than 1974 Porsche 911. (165 HP @ 5800 RPM). In normal driving conditions, 2005 Cadillac XLR should accelerate faster than 1974 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2005 Cadillac XLR weights approximately 534 kg more than 1974 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 2005 Cadillac XLR (420 Nm @ 4000 RPM) has 185 more torque (in Nm) than 1974 Porsche 911. (235 Nm @ 4000 RPM). This means 2005 Cadillac XLR will have an easier job in driving up hills or pulling heavy equipment than 1974 Porsche 911. 2005 Cadillac XLR has automatic transmission and 1974 Porsche 911 has manual transmission. 1974 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Cadillac XLR will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Cadillac XLR | 1974 Porsche 911 | |
| Make | Cadillac | Porsche |
| Model | XLR | 911 |
| Year Released | 2005 | 1974 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4564 cc | 2687 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 322 HP | 165 HP |
| Engine RPM | 6400 RPM | 5800 RPM |
| Torque | 420 Nm | 235 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 93 mm | 90 mm |
| Engine Stroke Size | 84 mm | 70.4 mm |
| Engine Compression Ratio | 11.0:1 | 8.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1654 kg | 1120 kg |
| Vehicle Length | 4520 mm | 4300 mm |
| Vehicle Width | 1840 mm | 1620 mm |
| Vehicle Height | 1290 mm | 1330 mm |
| Wheelbase Size | 2690 mm | 2270 mm |
| Fuel Tank Capacity | 68 L | 79 L |
