1954 Alvis TA 21 vs. 1978 Monteverdi Sierra
To start off, 1978 Monteverdi Sierra is newer by 24 year(s). Which means there will be less support and parts availability for 1954 Alvis TA 21. In addition, the cost of maintenance, including insurance, on 1954 Alvis TA 21 would be higher. At 5,210 cc (8 cylinders), 1978 Monteverdi Sierra is equipped with a bigger engine. In terms of performance, 1978 Monteverdi Sierra (150 HP @ 4000 RPM) has 57 more horse power than 1954 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 1978 Monteverdi Sierra should accelerate faster than 1954 Alvis TA 21.
Compare all specifications:
| 1954 Alvis TA 21 | 1978 Monteverdi Sierra | |
| Make | Alvis | Monteverdi |
| Model | TA 21 | Sierra |
| Year Released | 1954 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 5210 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 93 HP | 150 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4630 mm | 4890 mm |
| Wheelbase Size | 2840 mm | 2860 mm |
