1967 AC 428 vs. 1973 BMW Touring
To start off, 1973 BMW Touring is newer by 6 year(s). Which means there will be less support and parts availability for 1967 AC 428. In addition, the cost of maintenance, including insurance, on 1967 AC 428 would be higher. At 7,010 cc (8 cylinders), 1967 AC 428 is equipped with a bigger engine. In terms of performance, 1967 AC 428 (345 HP @ 4600 RPM) has 260 more horse power than 1973 BMW Touring. (85 HP @ 5700 RPM). In normal driving conditions, 1967 AC 428 should accelerate faster than 1973 BMW Touring. With that said, vehicle weight also plays an important factor in acceleration. 1967 AC 428 weights approximately 453 kg more than 1973 BMW Touring. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1967 AC 428 (627 Nm @ 2800 RPM) has 497 more torque (in Nm) than 1973 BMW Touring. (130 Nm @ 3500 RPM). This means 1967 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1973 BMW Touring.
Compare all specifications:
| 1967 AC 428 | 1973 BMW Touring | |
| Make | AC | BMW |
| Model | 428 | Touring |
| Year Released | 1967 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 7010 cc | 1573 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 345 HP | 85 HP |
| Engine RPM | 4600 RPM | 5700 RPM |
| Torque | 627 Nm | 130 Nm |
| Torque RPM | 2800 RPM | 3500 RPM |
| Engine Bore Size | 105 mm | 84 mm |
| Engine Stroke Size | 101.2 mm | 71 mm |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1483 kg | 1030 kg |
| Vehicle Length | 4520 mm | 4120 mm |
| Vehicle Width | 1710 mm | 1600 mm |
| Vehicle Height | 1260 mm | 1390 mm |
| Wheelbase Size | 2440 mm | 2510 mm |
