Pontiac 2000 Firebird MMS 421 Concept Technical Data
| Engine | 6899 cc / 421.0 cu in, Not Available |
| Horsepower | 466.1 kw / 625.0 bhp @ ???? rpm |
| Torque | 745.7 nm / 550.0 ft lbs @ ???? rpm |
| Max speed | Not Available |
| 0-60mph | 0 |
| 0-100mph | 0 |
| Weight | Not Available |
| Engine | 6899 cc / 421.0 cu in, Not Available |
| Horsepower | 466.1 kw / 625.0 bhp @ ???? rpm |
| Torque | 745.7 nm / 550.0 ft lbs @ ???? rpm |
| Max speed | Not Available |
| 0-60mph | 0 |
| 0-100mph | 0 |
| Weight | Not Available |