2006 BMW Z4 vs. 2007 Cadillac CTS
To start off, 2007 Cadillac CTS is newer by 1 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), 2007 Cadillac CTS is equipped with a bigger engine. In terms of performance, 2007 Cadillac CTS (253 HP @ 6200 RPM) has 25 more horse power than 2006 BMW Z4. (228 HP @ 5900 RPM) In normal driving conditions, 2007 Cadillac CTS should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac CTS weights approximately 341 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, 2007 Cadillac CTS (343 Nm @ 3200 RPM) has 42 more torque (in Nm) than 2006 BMW Z4. (301 Nm @ 3500 RPM). This means 2007 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 | 2007 Cadillac CTS | |
| Make | BMW | Cadillac |
| Model | Z4 | CTS |
| Year Released | 2006 | 2007 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 3564 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 228 HP | 253 HP |
| Engine RPM | 5900 RPM | 6200 RPM |
| Torque | 301 Nm | 343 Nm |
| Torque RPM | 3500 RPM | 3200 RPM |
| Engine Bore Size | 84 mm | 94 mm |
| Engine Stroke Size | 89.6 mm | 85 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 241 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 7 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1365 kg | 1706 kg |
| Vehicle Length | 4100 mm | 4830 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1310 mm | 1450 mm |
| Wheelbase Size | 2500 mm | 2890 mm |
| Fuel Consumption Overall | 9.1 L/100km | 11.3 L/100km |
| Fuel Tank Capacity | 55 L | 66 L |
