2005 Lexus IS vs. 2007 Proton Gen
To start off, 2007 Proton Gen is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Lexus IS. In addition, the cost of maintenance, including insurance, on 2005 Lexus IS would be higher. At 2,999 cc (6 cylinders), 2005 Lexus IS is equipped with a bigger engine. In terms of performance, 2005 Lexus IS (201 HP @ 5600 RPM) has 92 more horse power than 2007 Proton Gen. (109 HP @ 6000 RPM). In normal driving conditions, 2005 Lexus IS should accelerate faster than 2007 Proton Gen.
Because 2005 Lexus IS is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2005 Lexus IS. However, in wet, icy, snow, or gravel driving conditions, 2007 Proton Gen, being front wheel drive (FWD), will offer much better control with better grip. 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, 2005 Lexus IS (310 Nm @ 3800 RPM) has 162 more torque (in Nm) than 2007 Proton Gen. (148 Nm @ 4000 RPM). This means 2005 Lexus IS will have an easier job in driving up hills or pulling heavy equipment than 2007 Proton Gen. 2005 Lexus IS has automatic transmission and 2007 Proton Gen has manual transmission. 2007 Proton Gen will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Lexus IS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Lexus IS | 2007 Proton Gen | |
| Make | Lexus | Proton |
| Model | IS | Gen |
| Year Released | 2005 | 2007 |
| Engine Size | 2999 cc | 1597 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 201 HP | 109 HP |
| Engine RPM | 5600 RPM | 6000 RPM |
| Torque | 310 Nm | 148 Nm |
| Torque RPM | 3800 RPM | 4000 RPM |
| Engine Bore Size | 86 mm | 76 mm |
| Engine Stroke Size | 86 mm | 88 mm |
| Engine Compression Ratio | 10.5:1 | 9.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 230 km/hour | 190 km/hour |
| Acceleration 0-100mph | 8.4 seconds | 10.5 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Length | 4510 mm | 4320 mm |
| Vehicle Width | 1730 mm | 1730 mm |
| Vehicle Height | 1440 mm | 1440 mm |
| Wheelbase Size | 2680 mm | 2610 mm |
| Fuel Consumption Overall | 11.4 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 66 L | 50 L |
