2006 BMW Z4 vs. 2009 Cadillac CTS
To start off, 2009 Cadillac CTS is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW Z4. In addition, the cost of maintenance, including insurance, on 2006 BMW Z4 would be higher. At 3,564 cc (6 cylinders), 2009 Cadillac CTS is equipped with a bigger engine. In terms of performance, 2009 Cadillac CTS (307 HP @ 6400 RPM) has 118 more horse power than 2006 BMW Z4. (189 HP @ 6000 RPM) In normal driving conditions, 2009 Cadillac CTS should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac CTS weights approximately 453 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, 2009 Cadillac CTS (374 Nm @ 5200 RPM) has 129 more torque (in Nm) than 2006 BMW Z4. (245 Nm @ 3500 RPM). This means 2009 Cadillac CTS will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4. 2009 Cadillac CTS has automatic transmission and 2006 BMW Z4 has manual transmission. 2006 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Cadillac CTS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2009 Cadillac CTS | |
| Make | BMW | Cadillac |
| Model | Z4 | CTS |
| Year Released | 2006 | 2009 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 3564 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 307 HP |
| Engine RPM | 6000 RPM | 6400 RPM |
| Torque | 245 Nm | 374 Nm |
| Torque RPM | 3500 RPM | 5200 RPM |
| Engine Bore Size | 84 mm | 94 mm |
| Engine Stroke Size | 75 mm | 85.6 mm |
| Engine Compression Ratio | 11.0:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 235 km/hour | 249 km/hour |
| Acceleration 0-100mph | 7 seconds | 6.6 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1335 kg | 1788 kg |
| Vehicle Length | 4100 mm | 4870 mm |
| Vehicle Width | 1790 mm | 1850 mm |
| Vehicle Height | 1310 mm | 1470 mm |
| Wheelbase Size | 2500 mm | 2890 mm |
| Fuel Consumption Overall | 9 L/100km | 11.1 L/100km |
| Fuel Tank Capacity | 55 L | 68 L |
