1999 Aston Martin DB7 vs. 1991 Chrysler Viper
To start off, 1999 Aston Martin DB7 is newer by 8 year(s). Which means there will be less support and parts availability for 1991 Chrysler Viper. In addition, the cost of maintenance, including insurance, on 1991 Chrysler Viper would be higher. At 7,986 cc (10 cylinders), 1991 Chrysler Viper is equipped with a bigger engine. In terms of performance, 1999 Aston Martin DB7 (420 HP @ 6000 RPM) has 31 more horse power than 1991 Chrysler Viper. (389 HP @ 5150 RPM). In normal driving conditions, 1999 Aston Martin DB7 should accelerate faster than 1991 Chrysler Viper. With that said, vehicle weight also plays an important factor in acceleration. 1999 Aston Martin DB7 weights approximately 235 kg more than 1991 Chrysler Viper. 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, 1991 Chrysler Viper (621 Nm @ 3600 RPM) has 79 more torque (in Nm) than 1999 Aston Martin DB7. (542 Nm @ 5000 RPM). This means 1991 Chrysler Viper will have an easier job in driving up hills or pulling heavy equipment than 1999 Aston Martin DB7. 1999 Aston Martin DB7 has automatic transmission and 1991 Chrysler Viper has manual transmission. 1991 Chrysler Viper will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Aston Martin DB7 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Aston Martin DB7 | 1991 Chrysler Viper | |
| Make | Aston Martin | Chrysler |
| Model | DB7 | Viper |
| Year Released | 1999 | 1991 |
| Body Type | Coupe | Roadster |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 7986 cc |
| Engine Cylinders | 12 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 420 HP | 389 HP |
| Engine RPM | 6000 RPM | 5150 RPM |
| Torque | 542 Nm | 621 Nm |
| Torque RPM | 5000 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1825 kg | 1590 kg |
| Vehicle Length | 4670 mm | 4460 mm |
| Vehicle Width | 1840 mm | 1930 mm |
| Vehicle Height | 1240 mm | 1130 mm |
| Wheelbase Size | 2600 mm | 2450 mm |
