1951 Alvis TA 21 vs. 1981 Monteverdi Sierra
To start off, 1981 Monteverdi Sierra is newer by 30 year(s). Which means there will be less support and parts availability for 1951 Alvis TA 21. In addition, the cost of maintenance, including insurance, on 1951 Alvis TA 21 would be higher. At 5,898 cc (8 cylinders), 1981 Monteverdi Sierra is equipped with a bigger engine. In terms of performance, 1981 Monteverdi Sierra (187 HP @ 4000 RPM) has 94 more horse power than 1951 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 1981 Monteverdi Sierra should accelerate faster than 1951 Alvis TA 21.
Compare all specifications:
| 1951 Alvis TA 21 | 1981 Monteverdi Sierra | |
| Make | Alvis | Monteverdi |
| Model | TA 21 | Sierra |
| Year Released | 1951 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 5898 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 93 HP | 187 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4630 mm | 4690 mm |
| Wheelbase Size | 2840 mm | 2750 mm |
