2007 BMW M3 vs. 1991 Saab 900
To start off, 2007 BMW M3 is newer by 16 year(s). Which means there will be less support and parts availability for 1991 Saab 900. In addition, the cost of maintenance, including insurance, on 1991 Saab 900 would be higher. At 3,245 cc (6 cylinders), 2007 BMW M3 is equipped with a bigger engine. In terms of performance, 2007 BMW M3 (338 HP @ 7900 RPM) has 200 more horse power than 1991 Saab 900. (138 HP @ 6000 RPM). In normal driving conditions, 2007 BMW M3 should accelerate faster than 1991 Saab 900. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW M3 weights approximately 355 kg more than 1991 Saab 900. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW M3 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 2007 BMW M3. However, in wet, icy, snow, or gravel driving conditions, 1991 Saab 900, 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, 2007 BMW M3 (365 Nm @ 4900 RPM) has 185 more torque (in Nm) than 1991 Saab 900. (180 Nm @ 2900 RPM). This means 2007 BMW M3 will have an easier job in driving up hills or pulling heavy equipment than 1991 Saab 900.
Compare all specifications:
| 2007 BMW M3 | 1991 Saab 900 | |
| Make | BMW | Saab |
| Model | M3 | 900 |
| Year Released | 2007 | 1991 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3245 cc | 1985 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 338 HP | 138 HP |
| Engine RPM | 7900 RPM | 6000 RPM |
| Torque | 365 Nm | 180 Nm |
| Torque RPM | 4900 RPM | 2900 RPM |
| Engine Bore Size | 87 mm | 90 mm |
| Engine Stroke Size | 91 mm | 78 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1655 kg | 1300 kg |
| Vehicle Length | 4500 mm | 4640 mm |
| Vehicle Width | 1790 mm | 1720 mm |
| Vehicle Height | 1380 mm | 1440 mm |
| Wheelbase Size | 2740 mm | 2530 mm |
