2009 Cadillac XLR vs. 1978 Mazda 929
To start off, 2009 Cadillac XLR is newer by 31 year(s). Which means there will be less support and parts availability for 1978 Mazda 929. In addition, the cost of maintenance, including insurance, on 1978 Mazda 929 would be higher. At 4,369 cc (8 cylinders), 2009 Cadillac XLR is equipped with a bigger engine. In terms of performance, 2009 Cadillac XLR (444 HP @ 6400 RPM) has 361 more horse power than 1978 Mazda 929. (83 HP @ 5000 RPM). In normal driving conditions, 2009 Cadillac XLR should accelerate faster than 1978 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac XLR weights approximately 651 kg more than 1978 Mazda 929. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2009 Cadillac XLR (561 Nm @ 3900 RPM) has 427 more torque (in Nm) than 1978 Mazda 929. (134 Nm @ 3000 RPM). This means 2009 Cadillac XLR will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda 929.
Compare all specifications:
| 2009 Cadillac XLR | 1978 Mazda 929 | |
| Make | Cadillac | Mazda |
| Model | XLR | 929 |
| Year Released | 2009 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 4369 cc | 1769 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 444 HP | 83 HP |
| Engine RPM | 6400 RPM | 5000 RPM |
| Torque | 561 Nm | 134 Nm |
| Torque RPM | 3900 RPM | 3000 RPM |
| Engine Bore Size | 91 mm | 80 mm |
| Engine Stroke Size | 84 mm | 88 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1721 kg | 1070 kg |
| Vehicle Length | 4520 mm | 4410 mm |
| Vehicle Width | 1840 mm | 1670 mm |
| Vehicle Height | 1290 mm | 1420 mm |
| Wheelbase Size | 2690 mm | 2520 mm |
| Fuel Tank Capacity | 68 L | 55 L |
