1972 AMC Ambassador vs. 2003 GMC Sierra
To start off, 2003 GMC Sierra is newer by 31 year(s). Which means there will be less support and parts availability for 1972 AMC Ambassador. In addition, the cost of maintenance, including insurance, on 1972 AMC Ambassador would be higher. At 5,967 cc (8 cylinders), 2003 GMC Sierra is equipped with a bigger engine. In terms of performance, 2003 GMC Sierra (321 HP @ 5000 RPM) has 126 more horse power than 1972 AMC Ambassador. (195 HP @ 4400 RPM) In normal driving conditions, 2003 GMC Sierra should accelerate faster than 1972 AMC Ambassador. With that said, vehicle weight also plays an important factor in acceleration. 2003 GMC Sierra weights approximately 613 kg more than 1972 AMC Ambassador. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1972 AMC Ambassador. In wet, icy, snow, or gravel driving conditions, 2003 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, 1972 AMC Ambassador (403 Nm @ 2900 RPM) has 33 more torque (in Nm) than 2003 GMC Sierra. (370 Nm @ 4000 RPM). This means 1972 AMC Ambassador will have an easier job in driving up hills or pulling heavy equipment than 2003 GMC Sierra.
Compare all specifications:
| 1972 AMC Ambassador | 2003 GMC Sierra | |
| Make | AMC | GMC |
| Model | Ambassador | Sierra |
| Year Released | 1972 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 5897 cc | 5967 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 195 HP | 321 HP |
| Engine RPM | 4400 RPM | 5000 RPM |
| Torque | 403 Nm | 370 Nm |
| Torque RPM | 2900 RPM | 4000 RPM |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1657 kg | 2270 kg |
| Vehicle Length | 5370 mm | 5790 mm |
| Vehicle Width | 1970 mm | 2000 mm |
| Vehicle Height | 1420 mm | 1850 mm |
| Wheelbase Size | 3110 mm | 3650 mm |
