1978 AMC Pacer vs. 1972 McLaren M21
To start off, 1978 AMC Pacer is newer by 6 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 3,802 cc (6 cylinders), 1978 AMC Pacer is equipped with a bigger engine. In terms of performance, 1972 McLaren M21 (267 HP @ 10000 RPM) has 177 more horse power than 1978 AMC Pacer. (90 HP @ 3050 RPM) In normal driving conditions, 1972 McLaren M21 should accelerate faster than 1978 AMC Pacer. With that said, vehicle weight also plays an important factor in acceleration. 1978 AMC Pacer weights approximately 894 kg more than 1972 McLaren M21.
Compare all specifications:
| 1978 AMC Pacer | 1972 McLaren M21 | |
| Make | AMC | McLaren |
| Model | Pacer | M21 |
| Year Released | 1978 | 1972 |
| Engine Size | 3802 cc | 1897 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 90 HP | 267 HP |
| Engine RPM | 3050 RPM | 10000 RPM |
| Vehicle Weight | 1359 kg | 465 kg |
