1971 Ginetta G21 vs. 2004 GMC Sierra
To start off, 2004 GMC Sierra is newer by 33 year(s). Which means there will be less support and parts availability for 1971 Ginetta G21. In addition, the cost of maintenance, including insurance, on 1971 Ginetta G21 would be higher. At 5,965 cc (8 cylinders), 2004 GMC Sierra is equipped with a bigger engine. In terms of performance, 2004 GMC Sierra (340 HP @ 5200 RPM) has 255 more horse power than 1971 Ginetta G21. (85 HP @ 5200 RPM) In normal driving conditions, 2004 GMC Sierra should accelerate faster than 1971 Ginetta G21. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Sierra weights approximately 1608 kg more than 1971 Ginetta G21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1971 Ginetta G21. In wet, icy, snow, or gravel driving conditions, 2004 GMC Sierra 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 Sierra (516 Nm @ 4000 RPM) has 393 more torque (in Nm) than 1971 Ginetta G21. (123 Nm @ 3800 RPM). This means 2004 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1971 Ginetta G21. 2004 GMC Sierra has automatic transmission and 1971 Ginetta G21 has manual transmission. 1971 Ginetta G21 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1971 Ginetta G21 | 2004 GMC Sierra | |
| Make | Ginetta | GMC |
| Model | G21 | Sierra |
| Year Released | 1971 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1725 cc | 5965 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 85 HP | 340 HP |
| Engine RPM | 5200 RPM | 5200 RPM |
| Torque | 123 Nm | 516 Nm |
| Torque RPM | 3800 RPM | 4000 RPM |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 737 kg | 2345 kg |
| Vehicle Length | 3980 mm | 5740 mm |
| Vehicle Width | 1610 mm | 2000 mm |
| Vehicle Height | 1170 mm | 1910 mm |
| Wheelbase Size | 2320 mm | 3650 mm |
