1989 Ford Sierra vs. 1972 McLaren M21
To start off, 1989 Ford Sierra is newer by 17 year(s). Which means there will be less support and parts availability for 1972 McLaren M21. In addition, the cost of maintenance, including insurance, on 1972 McLaren M21 would be higher. At 1,993 cc (4 cylinders), 1989 Ford Sierra is equipped with a bigger engine. In terms of performance, 1972 McLaren M21 (283 HP @ 9000 RPM) has 182 more horse power than 1989 Ford Sierra. (101 HP @ 5200 RPM) In normal driving conditions, 1972 McLaren M21 should accelerate faster than 1989 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1989 Ford Sierra weights approximately 681 kg more than 1972 McLaren M21.
Compare all specifications:
| 1989 Ford Sierra | 1972 McLaren M21 | |
| Make | Ford | McLaren |
| Model | Sierra | M21 |
| Year Released | 1989 | 1972 |
| Engine Size | 1993 cc | 1927 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 101 HP | 283 HP |
| Engine RPM | 5200 RPM | 9000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1146 kg | 465 kg |
