2007 Chevrolet Corvette vs. 1991 Ford Sierra
To start off, 2007 Chevrolet Corvette is newer by 16 year(s). Which means there will be less support and parts availability for 1991 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1991 Ford Sierra would be higher. At 5,968 cc (8 cylinders), 2007 Chevrolet Corvette is equipped with a bigger engine. In terms of performance, 2007 Chevrolet Corvette (398 HP @ 6000 RPM) has 323 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM). In normal driving conditions, 2007 Chevrolet Corvette should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Chevrolet Corvette weights approximately 325 kg more than 1991 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2007 Chevrolet Corvette (546 Nm @ 4400 RPM) has 394 more torque (in Nm) than 1991 Ford Sierra. (152 Nm @ 2200 RPM). This means 2007 Chevrolet Corvette will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 2007 Chevrolet Corvette | 1991 Ford Sierra | |
| Make | Chevrolet | Ford |
| Model | Corvette | Sierra |
| Year Released | 2007 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 5968 cc | 1751 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 398 HP | 75 HP |
| Engine RPM | 6000 RPM | 4500 RPM |
| Torque | 546 Nm | 152 Nm |
| Torque RPM | 4400 RPM | 2200 RPM |
| Engine Bore Size | 101 mm | 82.5 mm |
| Engine Stroke Size | 92 mm | 82 mm |
| Engine Compression Ratio | 11.0:1 | 21.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1470 kg | 1145 kg |
| Vehicle Length | 4440 mm | 4430 mm |
| Vehicle Width | 1850 mm | 1700 mm |
| Vehicle Height | 1250 mm | 1370 mm |
| Wheelbase Size | 2690 mm | 2620 mm |
| Fuel Tank Capacity | 68 L | 60 L |
