2007 BMW X5 vs. 1991 Mercedes-Benz SL
To start off, 2007 BMW X5 is newer by 16 year(s). Which means there will be less support and parts availability for 1991 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 1991 Mercedes-Benz SL would be higher. At 2,979 cc (6 cylinders), 2007 BMW X5 is equipped with a bigger engine. In terms of performance, both vehicles can yield 228 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 414 kg more than 1991 Mercedes-Benz SL.
Because 2007 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2007 BMW X5 will offer significantly more control. 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 BMW X5 (300 Nm @ 3500 RPM) has 28 more torque (in Nm) than 1991 Mercedes-Benz SL. (272 Nm @ 4600 RPM). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mercedes-Benz SL. 2007 BMW X5 has automatic transmission and 1991 Mercedes-Benz SL has manual transmission. 1991 Mercedes-Benz SL will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
2007 BMW X5 | 1991 Mercedes-Benz SL | |
Make | BMW | Mercedes-Benz |
Model | X5 | SL |
Year Released | 2007 | 1991 |
Body Type | SUV | Convertible |
Engine Position | Front | Front |
Engine Size | 2979 cc | 2961 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | in-line | in-line |
Horse Power | 228 HP | 228 HP |
Engine RPM | 5900 RPM | 6400 RPM |
Torque | 300 Nm | 272 Nm |
Torque RPM | 3500 RPM | 4600 RPM |
Engine Bore Size | 84.1 mm | 88.5 mm |
Engine Stroke Size | 89.6 mm | 80.3 mm |
Engine Compression Ratio | 10.2:1 | 10.0:1 |
Fuel Type | Gasoline | Gasoline |
Drive Type | 4WD | Rear |
Transmission Type | Automatic | Manual |
Number of Seats | 5 seats | 2 seats |
Number of Doors | 5 doors | 2 doors |
Vehicle Weight | 2104 kg | 1690 kg |
Vehicle Length | 4670 mm | 4480 mm |
Vehicle Width | 1710 mm | 1820 mm |
Vehicle Height | 1880 mm | 1300 mm |
Wheelbase Size | 2830 mm | 2520 mm |
Fuel Tank Capacity | 85 L | 80 L |