1951 Alvis TA 21 vs. 1975 GMC Jimmy
To start off, 1975 GMC Jimmy is newer by 24 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 5,002 cc (8 cylinders), 1975 GMC Jimmy is equipped with a bigger engine. In terms of performance, 1975 GMC Jimmy (133 HP @ 4200 RPM) has 40 more horse power than 1951 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 1975 GMC Jimmy should accelerate faster than 1951 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 1975 GMC Jimmy weights approximately 436 kg more than 1951 Alvis TA 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1975 GMC Jimmy is four wheel drive (4WD), it will have significant more traction and grip than 1951 Alvis TA 21. In wet, icy, snow, or gravel driving conditions, 1975 GMC Jimmy will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1975 GMC Jimmy (319 Nm @ 2400 RPM) has 115 more torque (in Nm) than 1951 Alvis TA 21. (204 Nm @ 2000 RPM). This means 1975 GMC Jimmy will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TA 21. 1975 GMC Jimmy has automatic transmission and 1951 Alvis TA 21 has manual transmission. 1951 Alvis TA 21 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1975 GMC Jimmy will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1951 Alvis TA 21 | 1975 GMC Jimmy | |
| Make | Alvis | GMC |
| Model | TA 21 | Jimmy |
| Year Released | 1951 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 5002 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 93 HP | 133 HP |
| Engine RPM | 4000 RPM | 4200 RPM |
| Torque | 204 Nm | 319 Nm |
| Torque RPM | 2000 RPM | 2400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1448 kg | 1884 kg |
| Vehicle Length | 4630 mm | 4690 mm |
| Vehicle Width | 1680 mm | 2030 mm |
| Vehicle Height | 1600 mm | 1840 mm |
| Wheelbase Size | 2840 mm | 2720 mm |
