2008 BMW Z4 vs. 2005 Cadillac XLR
To start off, 2008 BMW Z4 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Cadillac XLR. In addition, the cost of maintenance, including insurance, on 2005 Cadillac XLR would be higher. At 4,564 cc (8 cylinders), 2005 Cadillac XLR is equipped with a bigger engine. In terms of performance, 2008 BMW Z4 (338 HP @ 7900 RPM) has 16 more horse power than 2005 Cadillac XLR. (322 HP @ 6400 RPM). In normal driving conditions, 2008 BMW Z4 should accelerate faster than 2005 Cadillac XLR. With that said, vehicle weight also plays an important factor in acceleration. 2005 Cadillac XLR weights approximately 169 kg more than 2008 BMW Z4.
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 55 more torque (in Nm) than 2008 BMW Z4. (365 Nm @ 4900 RPM). This means 2005 Cadillac XLR will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW Z4. 2005 Cadillac XLR has automatic transmission and 2008 BMW Z4 has manual transmission. 2008 BMW Z4 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:
| 2008 BMW Z4 | 2005 Cadillac XLR | |
| Make | BMW | Cadillac |
| Model | Z4 | XLR |
| Year Released | 2008 | 2005 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 4564 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 322 HP |
| Engine RPM | 7900 RPM | 6400 RPM |
| Torque | 365 Nm | 420 Nm |
| Torque RPM | 4900 RPM | 4000 RPM |
| Engine Bore Size | 91 mm | 93 mm |
| Engine Stroke Size | 87 mm | 84 mm |
| Engine Compression Ratio | 11.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 5 seconds | 5.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1485 kg | 1654 kg |
| Vehicle Length | 4870 mm | 4520 mm |
| Vehicle Height | 1480 mm | 1290 mm |
| Wheelbase Size | 2500 mm | 2690 mm |
| Fuel Tank Capacity | 70 L | 68 L |
