1999 AC Ace vs. 1993 BMW 856
To start off, 1999 AC Ace is newer by 6 year(s). Which means there will be less support and parts availability for 1993 BMW 856. In addition, the cost of maintenance, including insurance, on 1993 BMW 856 would be higher. At 5,576 cc (12 cylinders), 1993 BMW 856 is equipped with a bigger engine. In terms of performance, 1993 BMW 856 (376 HP @ 5300 RPM) has 25 more horse power than 1999 AC Ace. (351 HP @ 6500 RPM) In normal driving conditions, 1993 BMW 856 should accelerate faster than 1999 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 1993 BMW 856 weights approximately 840 kg more than 1999 AC Ace. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1993 BMW 856 (550 Nm @ 4000 RPM) has 150 more torque (in Nm) than 1999 AC Ace. (400 Nm @ 4000 RPM). This means 1993 BMW 856 will have an easier job in driving up hills or pulling heavy equipment than 1999 AC Ace.
Compare all specifications:
| 1999 AC Ace | 1993 BMW 856 | |
| Make | AC | BMW |
| Model | Ace | 856 |
| Year Released | 1999 | 1993 |
| Body Type | Roadster | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3506 cc | 5576 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Horse Power | 351 HP | 376 HP |
| Engine RPM | 6500 RPM | 5300 RPM |
| Torque | 400 Nm | 550 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 86 mm |
| Engine Stroke Size | 81 mm | 80 mm |
| Engine Compression Ratio | 8.0:1 | 9.8:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1025 kg | 1865 kg |
| Vehicle Length | 4430 mm | 4790 mm |
| Vehicle Width | 1880 mm | 1860 mm |
| Vehicle Height | 1310 mm | 1350 mm |
| Wheelbase Size | 2480 mm | 2690 mm |
