2006 BMW 325 vs. 1991 BMW M12
To start off, 2006 BMW 325 is newer by 15 year(s). Which means there will be less support and parts availability for 1991 BMW M12. In addition, the cost of maintenance, including insurance, on 1991 BMW M12 would be higher. At 4,988 cc (12 cylinders), 1991 BMW M12 is equipped with a bigger engine. In terms of performance, 1991 BMW M12 (296 HP @ 5200 RPM) has 81 more horse power than 2006 BMW 325. (215 HP @ 6250 RPM) In normal driving conditions, 1991 BMW M12 should accelerate faster than 2006 BMW 325.
Let's talk about torque, 1991 BMW M12 (450 Nm @ 4100 RPM) has 199 more torque (in Nm) than 2006 BMW 325. (251 Nm @ 2750 RPM). This means 1991 BMW M12 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 325.
Compare all specifications:
| 2006 BMW 325 | 1991 BMW M12 | |
| Make | BMW | BMW |
| Model | 325 | M12 |
| Year Released | 2006 | 1991 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 2997 cc | 4988 cc |
| Horse Power | 215 HP | 296 HP |
| Engine RPM | 6250 RPM | 5200 RPM |
| Torque | 251 Nm | 450 Nm |
| Torque RPM | 2750 RPM | 4100 RPM |
| Engine Bore Size | 85.1 mm | 84 mm |
| Engine Stroke Size | 87.9 mm | 75 mm |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4530 mm | 4370 mm |
| Vehicle Width | 1820 mm | 2000 mm |
| Vehicle Height | 1420 mm | 1110 mm |
| Wheelbase Size | 2770 mm | 2610 mm |
