2007 Cadillac STS vs. 1991 Mercedes-Benz 300
To start off, 2007 Cadillac STS is newer by 16 year(s). Which means there will be less support and parts availability for 1991 Mercedes-Benz 300. In addition, the cost of maintenance, including insurance, on 1991 Mercedes-Benz 300 would be higher. At 4,565 cc (8 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (321 HP @ 6400 RPM) has 90 more horse power than 1991 Mercedes-Benz 300. (231 HP @ 5800 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 1991 Mercedes-Benz 300. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mercedes-Benz 300 weights approximately 265 kg more than 2007 Cadillac STS.
Because 1991 Mercedes-Benz 300 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 1991 Mercedes-Benz 300. However, in wet, icy, snow, or gravel driving conditions, 2007 Cadillac STS, 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 Cadillac STS (427 Nm @ 4400 RPM) has 117 more torque (in Nm) than 1991 Mercedes-Benz 300. (310 Nm @ 4100 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1991 Mercedes-Benz 300. 2007 Cadillac STS has automatic transmission and 1991 Mercedes-Benz 300 has manual transmission. 1991 Mercedes-Benz 300 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Cadillac STS | 1991 Mercedes-Benz 300 | |
| Make | Cadillac | Mercedes-Benz |
| Model | STS | 300 |
| Year Released | 2007 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 3198 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 321 HP | 231 HP |
| Engine RPM | 6400 RPM | 5800 RPM |
| Torque | 427 Nm | 310 Nm |
| Torque RPM | 4400 RPM | 4100 RPM |
| Engine Bore Size | 93 mm | 89.9 mm |
| Engine Stroke Size | 84 mm | 84 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1635 kg | 1900 kg |
| Vehicle Length | 4990 mm | 5110 mm |
| Vehicle Width | 1850 mm | 1890 mm |
| Vehicle Height | 1470 mm | 1500 mm |
| Wheelbase Size | 2960 mm | 3050 mm |
| Fuel Tank Capacity | 64 L | 100 L |
