2009 Audi A4 vs. 1972 McLaren M21
To start off, 2009 Audi A4 is newer by 37 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 1,897 cc (4 cylinders), 1972 McLaren M21 is equipped with a bigger engine. In terms of performance, 1972 McLaren M21 (267 HP @ 10000 RPM) has 109 more horse power than 2009 Audi A4. (158 HP @ 4500 RPM) In normal driving conditions, 1972 McLaren M21 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 945 kg more than 1972 McLaren M21.
Compare all specifications:
| 2009 Audi A4 | 1972 McLaren M21 | |
| Make | Audi | McLaren |
| Model | A4 | M21 |
| Year Released | 2009 | 1972 |
| Engine Size | 1798 cc | 1897 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 158 HP | 267 HP |
| Engine RPM | 4500 RPM | 10000 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Vehicle Weight | 1410 kg | 465 kg |
