1991 Ford Aerostar vs. 1999 Mercedes-Benz S
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 Ford Aerostar. In addition, the cost of maintenance, including insurance, on 1991 Ford Aerostar would be higher. At 4,966 cc (8 cylinders), 1999 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 1999 Mercedes-Benz S (302 HP @ 5500 RPM) has 159 more horse power than 1991 Ford Aerostar. (143 HP @ 4800 RPM) In normal driving conditions, 1999 Mercedes-Benz S should accelerate faster than 1991 Ford Aerostar. With that said, vehicle weight also plays an important factor in acceleration. 1999 Mercedes-Benz S weights approximately 444 kg more than 1991 Ford Aerostar. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1999 Mercedes-Benz S (460 Nm @ 2700 RPM) has 236 more torque (in Nm) than 1991 Ford Aerostar. (224 Nm @ 3600 RPM). This means 1999 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Aerostar.
Compare all specifications:
| 1991 Ford Aerostar | 1999 Mercedes-Benz S | |
| Make | Ford | Mercedes-Benz |
| Model | Aerostar | S |
| Year Released | 1991 | 1999 |
| Body Type | Minivan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 4966 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 143 HP | 302 HP |
| Engine RPM | 4800 RPM | 5500 RPM |
| Torque | 224 Nm | 460 Nm |
| Torque RPM | 3600 RPM | 2700 RPM |
| Engine Bore Size | 88.9 mm | 97 mm |
| Engine Stroke Size | 78.7 mm | 84 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1410 kg | 1854 kg |
| Vehicle Length | 4450 mm | 5170 mm |
| Vehicle Width | 1830 mm | 1860 mm |
| Vehicle Height | 1860 mm | 1460 mm |
| Wheelbase Size | 3030 mm | 3090 mm |
