2008 Cadillac CTS vs. 1991 Renault 21
To start off, 2008 Cadillac CTS is newer by 17 year(s). Which means there will be less support and parts availability for 1991 Renault 21. In addition, the cost of maintenance, including insurance, on 1991 Renault 21 would be higher. At 3,598 cc (6 cylinders), 2008 Cadillac CTS is equipped with a bigger engine. In terms of performance, 2008 Cadillac CTS (304 HP @ 6400 RPM) has 229 more horse power than 1991 Renault 21. (75 HP @ 5000 RPM). In normal driving conditions, 2008 Cadillac CTS should accelerate faster than 1991 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2008 Cadillac CTS weights approximately 835 kg more than 1991 Renault 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Cadillac CTS 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 2008 Cadillac CTS. However, in wet, icy, snow, or gravel driving conditions, 1991 Renault 21, 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, 2008 Cadillac CTS (370 Nm @ 5200 RPM) has 241 more torque (in Nm) than 1991 Renault 21. (129 Nm @ 3250 RPM). This means 2008 Cadillac CTS will have an easier job in driving up hills or pulling heavy equipment than 1991 Renault 21. 2008 Cadillac CTS has automatic transmission and 1991 Renault 21 has manual transmission. 1991 Renault 21 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Cadillac CTS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Cadillac CTS | 1991 Renault 21 | |
| Make | Cadillac | Renault |
| Model | CTS | 21 |
| Year Released | 2008 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 3598 cc | 1721 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 304 HP | 75 HP |
| Engine RPM | 6400 RPM | 5000 RPM |
| Torque | 370 Nm | 129 Nm |
| Torque RPM | 5200 RPM | 3250 RPM |
| Engine Compression Ratio | 11.3:1 | 9.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1790 kg | 955 kg |
| Vehicle Length | 4870 mm | 4470 mm |
| Vehicle Width | 1850 mm | 1730 mm |
| Vehicle Height | 1480 mm | 1430 mm |
| Wheelbase Size | 2890 mm | 2550 mm |
| Fuel Consumption Overall | 11.2 L/100km | 7 L/100km |
| Fuel Tank Capacity | 68 L | 55 L |
