1958 AC Ace vs. 1957 Lotus XI Le Mans
To start off, 1958 AC Ace is newer by 1 year(s). Which means there will be less support and parts availability for 1957 Lotus XI Le Mans. In addition, the cost of maintenance, including insurance, on 1957 Lotus XI Le Mans would be higher. At 1,971 cc (6 cylinders), 1958 AC Ace is equipped with a bigger engine. In terms of performance, 1958 AC Ace (125 HP @ 6000 RPM) has 41 more horse power than 1957 Lotus XI Le Mans. (84 HP @ 6400 RPM). In normal driving conditions, 1958 AC Ace should accelerate faster than 1957 Lotus XI Le Mans. With that said, vehicle weight also plays an important factor in acceleration. 1958 AC Ace weights approximately 484 kg more than 1957 Lotus XI Le Mans. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Compare all specifications:
| 1958 AC Ace | 1957 Lotus XI Le Mans | |
| Make | AC | Lotus |
| Model | Ace | XI Le Mans |
| Year Released | 1958 | 1957 |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 1096 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 125 HP | 84 HP |
| Engine RPM | 6000 RPM | 6400 RPM |
| Engine Bore Size | 66 mm | 72.4 mm |
| Engine Stroke Size | 96 mm | 66.7 mm |
| Engine Compression Ratio | 9.0:1 | 9.8:1 |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 894 kg | 410 kg |
| Vehicle Length | 4010 mm | 3540 mm |
| Vehicle Width | 1520 mm | 1550 mm |
| Vehicle Height | 1270 mm | 820 mm |
| Wheelbase Size | 2290 mm | 2240 mm |
