2007 Cadillac XLR vs. 1977 Monteverdi Sierra
To start off, 2007 Cadillac XLR is newer by 30 year(s). Which means there will be less support and parts availability for 1977 Monteverdi Sierra. In addition, the cost of maintenance, including insurance, on 1977 Monteverdi Sierra would be higher. At 5,898 cc (8 cylinders), 1977 Monteverdi Sierra is equipped with a bigger engine. In terms of performance, 2007 Cadillac XLR (443 HP @ 6400 RPM) has 266 more horse power than 1977 Monteverdi Sierra. (177 HP @ 4000 RPM). In normal driving conditions, 2007 Cadillac XLR should accelerate faster than 1977 Monteverdi Sierra.
Compare all specifications:
| 2007 Cadillac XLR | 1977 Monteverdi Sierra | |
| Make | Cadillac | Monteverdi |
| Model | XLR | Sierra |
| Year Released | 2007 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 4376 cc | 5898 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 443 HP | 177 HP |
| Engine RPM | 6400 RPM | 4000 RPM |
| Vehicle Length | 4520 mm | 4890 mm |
| Wheelbase Size | 2690 mm | 2860 mm |
