2003 Proton 400 vs. 2012 Chevrolet Sonic
To start off, 2012 Chevrolet Sonic is newer by 9 year(s). Which means there will be less support and parts availability for 2003 Proton 400. In addition, the cost of maintenance, including insurance, on 2003 Proton 400 would be higher. At 1,800 cc (4 cylinders), 2012 Chevrolet Sonic is equipped with a bigger engine. In terms of performance, 2012 Chevrolet Sonic (138 HP @ 6300 RPM) has 64 more horse power than 2003 Proton 400. (74 HP @ 6000 RPM) In normal driving conditions, 2012 Chevrolet Sonic should accelerate faster than 2003 Proton 400.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear 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, 2012 Chevrolet Sonic (169 Nm @ 3800 RPM) has 61 more torque (in Nm) than 2003 Proton 400. (108 Nm @ 3000 RPM). This means 2012 Chevrolet Sonic will have an easier job in driving up hills or pulling heavy equipment than 2003 Proton 400.
Compare all specifications:
| 2003 Proton 400 | 2012 Chevrolet Sonic | |
| Make | Proton | Chevrolet |
| Model | 400 | Sonic |
| Year Released | 2003 | 2012 |
| Engine Position | Front | Front |
| Engine Size | 1297 cc | 1800 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 74 HP | 138 HP |
| Engine RPM | 6000 RPM | 6300 RPM |
| Torque | 108 Nm | 169 Nm |
| Torque RPM | 3000 RPM | 3800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | 5-speed manual |
