2006 BMW Z4 vs. 2004 Cadillac CTS
To start off, 2006 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Cadillac CTS. In addition, the cost of maintenance, including insurance, on 2004 Cadillac CTS would be higher. At 5,665 cc (8 cylinders), 2004 Cadillac CTS is equipped with a bigger engine. In terms of performance, 2004 Cadillac CTS (396 HP @ 6000 RPM) has 207 more horse power than 2006 BMW Z4. (189 HP @ 6000 RPM) In normal driving conditions, 2004 Cadillac CTS should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Cadillac CTS weights approximately 410 kg more than 2006 BMW Z4. 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, 2004 Cadillac CTS (536 Nm @ 4800 RPM) has 291 more torque (in Nm) than 2006 BMW Z4. (245 Nm @ 3500 RPM). This means 2004 Cadillac CTS will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 2006 BMW Z4 | 2004 Cadillac CTS | |
| Make | BMW | Cadillac |
| Model | Z4 | CTS |
| Year Released | 2006 | 2004 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 5665 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 189 HP | 396 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 245 Nm | 536 Nm |
| Torque RPM | 3500 RPM | 4800 RPM |
| Engine Bore Size | 84 mm | 99 mm |
| Engine Stroke Size | 75 mm | 92 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 235 km/hour | 274 km/hour |
| Acceleration 0-100mph | 7 seconds | 4.7 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1335 kg | 1745 kg |
| Vehicle Length | 4100 mm | 4870 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1310 mm | 1460 mm |
| Wheelbase Size | 2500 mm | 2890 mm |
| Fuel Tank Capacity | 55 L | 68 L |
