1999 Mercedes-Benz S vs. 1991 Rover 400
To start off, 1999 Mercedes-Benz S is newer by 8 year(s). Which means there will be less support and parts availability for 1991 Rover 400. In addition, the cost of maintenance, including insurance, on 1991 Rover 400 would be higher. At 5,789 cc (12 cylinders), 1999 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 1999 Mercedes-Benz S (362 HP @ 5500 RPM) has 268 more horse power than 1991 Rover 400. (94 HP @ 6250 RPM). In normal driving conditions, 1999 Mercedes-Benz S should accelerate faster than 1991 Rover 400. With that said, vehicle weight also plays an important factor in acceleration. 1999 Mercedes-Benz S weights approximately 940 kg more than 1991 Rover 400. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Mercedes-Benz S 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 1999 Mercedes-Benz S. However, in wet, icy, snow, or gravel driving conditions, 1991 Rover 400, 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, 1999 Mercedes-Benz S (540 Nm @ 4250 RPM) has 416 more torque (in Nm) than 1991 Rover 400. (124 Nm @ 4000 RPM). This means 1999 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 1991 Rover 400. 1999 Mercedes-Benz S has automatic transmission and 1991 Rover 400 has manual transmission. 1991 Rover 400 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Mercedes-Benz S will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Mercedes-Benz S | 1991 Rover 400 | |
| Make | Mercedes-Benz | Rover |
| Model | S | 400 |
| Year Released | 1999 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 5789 cc | 1395 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 362 HP | 94 HP |
| Engine RPM | 5500 RPM | 6250 RPM |
| Torque | 540 Nm | 124 Nm |
| Torque RPM | 4250 RPM | 4000 RPM |
| Engine Bore Size | 84.1 mm | 75 mm |
| Engine Stroke Size | 87 mm | 79 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1960 kg | 1020 kg |
| Vehicle Length | 5160 mm | 4370 mm |
| Vehicle Width | 1860 mm | 1690 mm |
| Vehicle Height | 1460 mm | 1410 mm |
| Wheelbase Size | 3090 mm | 2560 mm |
