1991 BMW 525 vs. 2006 BMW Z4
To start off, 2006 BMW Z4 is newer by 15 year(s). Which means there will be less support and parts availability for 1991 BMW 525. In addition, the cost of maintenance, including insurance, on 1991 BMW 525 would be higher. At 2,500 cc (6 cylinders), 1991 BMW 525 is equipped with a bigger engine. In terms of performance, 1991 BMW 525 (189 HP) has 41 more horse power than 2006 BMW Z4. (148 HP). In normal driving conditions, 1991 BMW 525 should accelerate faster than 2006 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.
Compare all specifications:
| 1991 BMW 525 | 2006 BMW Z4 | |
| Make | BMW | BMW |
| Model | 525 | Z4 |
| Year Released | 1991 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2500 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 148 HP |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Fuel Tank Capacity | 80 L | 55 L |
