2006 GMC Sierra vs. 1977 Mazda 121
To start off, 2006 GMC Sierra is newer by 29 year(s). Which means there will be less support and parts availability for 1977 Mazda 121. In addition, the cost of maintenance, including insurance, on 1977 Mazda 121 would be higher. At 4,802 cc (8 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2006 GMC Sierra (285 HP @ 5200 RPM) has 171 more horse power than 1977 Mazda 121. (114 HP @ 6000 RPM). In normal driving conditions, 2006 GMC Sierra should accelerate faster than 1977 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 1063 kg more than 1977 Mazda 121. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2006 GMC Sierra (400 Nm @ 4000 RPM) has 235 more torque (in Nm) than 1977 Mazda 121. (165 Nm @ 4000 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1977 Mazda 121.
Compare all specifications:
| 2006 GMC Sierra | 1977 Mazda 121 | |
| Make | GMC | Mazda |
| Model | Sierra | 121 |
| Year Released | 2006 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 4802 cc | 2615 cc |
| Engine Cylinders | 8 cylinders | 2 cylinders |
| Engine Type | V | in-line |
| Horse Power | 285 HP | 114 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 400 Nm | 165 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Drive Type | Rear | Rear |
| Number of Seats | 6 seats | 4 seats |
| Vehicle Weight | 2263 kg | 1200 kg |
| Vehicle Length | 5850 mm | 4510 mm |
| Vehicle Width | 2000 mm | 1690 mm |
| Vehicle Height | 1850 mm | 1350 mm |
| Wheelbase Size | 3650 mm | 2520 mm |
