1951 Alvis TA 21 vs. 2004 GMC Envoy
To start off, 2004 GMC Envoy is newer by 53 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 4,193 cc (6 cylinders), 2004 GMC Envoy is equipped with a bigger engine. In terms of performance, 2004 GMC Envoy (275 HP) has 182 more horse power than 1951 Alvis TA 21. (93 HP) In normal driving conditions, 2004 GMC Envoy should accelerate faster than 1951 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Envoy weights approximately 646 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 2004 GMC Envoy 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, 2004 GMC Envoy 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, 2004 GMC Envoy (373 Nm) has 169 more torque (in Nm) than 1951 Alvis TA 21. (204 Nm). This means 2004 GMC Envoy will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TA 21.
Compare all specifications:
| 1951 Alvis TA 21 | 2004 GMC Envoy | |
| Make | Alvis | GMC |
| Model | TA 21 | Envoy |
| Year Released | 1951 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4193 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 93 HP | 275 HP |
| Torque | 204 Nm | 373 Nm |
| Engine Bore Size | 84 mm | 93 mm |
| Engine Stroke Size | 90 mm | 102 mm |
| Engine Compression Ratio | 7.1:1 | 10.0:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1448 kg | 2094 kg |
| Vehicle Length | 4630 mm | 4870 mm |
| Vehicle Width | 1680 mm | 1900 mm |
| Vehicle Height | 1600 mm | 1830 mm |
| Wheelbase Size | 2840 mm | 2880 mm |
| Fuel Tank Capacity | 64 L | 83 L |
