2006 BMW Z4 vs. 1991 Cadillac DeVille
To start off, 2006 BMW Z4 is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Cadillac DeVille. In addition, the cost of maintenance, including insurance, on 1991 Cadillac DeVille would be higher. At 4,894 cc (8 cylinders), 1991 Cadillac DeVille is equipped with a bigger engine. In terms of performance, 1991 Cadillac DeVille (197 HP @ 4100 RPM) has 8 more horse power than 2006 BMW Z4. (189 HP @ 6000 RPM) In normal driving conditions, 1991 Cadillac DeVille should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 1991 Cadillac DeVille weights approximately 275 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.
Because 2006 BMW Z4 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2006 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 1991 Cadillac DeVille, being front wheel drive (FWD), will offer much better control with better grip. 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, 1991 Cadillac DeVille (373 Nm @ 3000 RPM) has 128 more torque (in Nm) than 2006 BMW Z4. (245 Nm @ 3500 RPM). This means 1991 Cadillac DeVille will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4. 1991 Cadillac DeVille 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. 1991 Cadillac DeVille will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 1991 Cadillac DeVille | |
| Make | BMW | Cadillac |
| Model | Z4 | DeVille |
| Year Released | 2006 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 4894 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 189 HP | 197 HP |
| Engine RPM | 6000 RPM | 4100 RPM |
| Torque | 245 Nm | 373 Nm |
| Torque RPM | 3500 RPM | 3000 RPM |
| Engine Bore Size | 84 mm | 92 mm |
| Engine Stroke Size | 75 mm | 92 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1335 kg | 1610 kg |
| Vehicle Length | 4100 mm | 5160 mm |
| Vehicle Width | 1790 mm | 1850 mm |
| Vehicle Height | 1310 mm | 1400 mm |
| Wheelbase Size | 2500 mm | 2820 mm |
