1955 Alvis TC 21 vs. 1958 Porsche 718
To start off, 1958 Porsche 718 is newer by 3 year(s). Which means there will be less support and parts availability for 1955 Alvis TC 21. In addition, the cost of maintenance, including insurance, on 1955 Alvis TC 21 would be higher. At 2,993 cc (6 cylinders), 1955 Alvis TC 21 is equipped with a bigger engine. In terms of performance, 1958 Porsche 718 (148 HP @ 8200 RPM) has 43 more horse power than 1955 Alvis TC 21. (105 HP @ 4000 RPM) In normal driving conditions, 1958 Porsche 718 should accelerate faster than 1955 Alvis TC 21. With that said, vehicle weight also plays an important factor in acceleration. 1955 Alvis TC 21 weights approximately 910 kg more than 1958 Porsche 718.
Compare all specifications:
| 1955 Alvis TC 21 | 1958 Porsche 718 | |
| Make | Alvis | Porsche |
| Model | TC 21 | 718 |
| Year Released | 1955 | 1958 |
| Engine Position | Front | Middle |
| Engine Size | 2993 cc | 1497 cc |
| Horse Power | 105 HP | 148 HP |
| Engine RPM | 4000 RPM | 8200 RPM |
| Vehicle Weight | 1450 kg | 540 kg |
