1987 Ford Sierra vs. 2011 Audi S5
To start off, 2011 Audi S5 is newer by 24 year(s). Which means there will be less support and parts availability for 1987 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1987 Ford Sierra would be higher. At 4,200 cc (8 cylinders), 2011 Audi S5 is equipped with a bigger engine. In terms of performance, 2011 Audi S5 (354 HP @ 7000 RPM) has 241 more horse power than 1987 Ford Sierra. (113 HP @ 5300 RPM) In normal driving conditions, 2011 Audi S5 should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2011 Audi S5 weights approximately 660 kg more than 1987 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, 2011 Audi S5 (440 Nm @ 3500 RPM) has 260 more torque (in Nm) than 1987 Ford Sierra. (180 Nm @ 3000 RPM). This means 2011 Audi S5 will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 1987 Ford Sierra | 2011 Audi S5 | |
| Make | Ford | Audi |
| Model | Sierra | S5 |
| Year Released | 1987 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 2294 cc | 4200 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 113 HP | 354 HP |
| Engine RPM | 5300 RPM | 7000 RPM |
| Torque | 180 Nm | 440 Nm |
| Torque RPM | 3000 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1090 kg | 1750 kg |
| Vehicle Length | 4400 mm | 4625 mm |
| Vehicle Width | 1680 mm | 1854 mm |
| Vehicle Height | 1370 mm | 1372 mm |
| Wheelbase Size | 2620 mm | 2751 mm |
| Fuel Tank Capacity | 45 L | 63 L |
