1999 BMW Z9 vs. 2007 Mercedes-Benz SL
To start off, 2007 Mercedes-Benz SL is newer by 8 year(s). Which means there will be less support and parts availability for 1999 BMW Z9. In addition, the cost of maintenance, including insurance, on 1999 BMW Z9 would be higher. At 5,439 cc (8 cylinders), 2007 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz SL (469 HP @ 2650 RPM) has 227 more horse power than 1999 BMW Z9. (242 HP @ 4000 RPM) In normal driving conditions, 2007 Mercedes-Benz SL should accelerate faster than 1999 BMW Z9.
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 Mercedes-Benz SL (701 Nm @ 2650 RPM) has 141 more torque (in Nm) than 1999 BMW Z9. (560 Nm @ 1750 RPM). This means 2007 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 1999 BMW Z9.
Compare all specifications:
| 1999 BMW Z9 | 2007 Mercedes-Benz SL | |
| Make | BMW | Mercedes-Benz |
| Model | Z9 | SL |
| Year Released | 1999 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 3901 cc | 5439 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 242 HP | 469 HP |
| Engine RPM | 4000 RPM | 2650 RPM |
| Torque | 560 Nm | 701 Nm |
| Torque RPM | 1750 RPM | 2650 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 2 seats |
| Vehicle Length | 5010 mm | 4540 mm |
| Vehicle Width | 2010 mm | 1820 mm |
| Vehicle Height | 1360 mm | 1300 mm |
| Wheelbase Size | 3110 mm | 2570 mm |
