1999 Lexus IS vs. 2007 Mercedes-Benz R
To start off, 2007 Mercedes-Benz R is newer by 8 year(s). Which means there will be less support and parts availability for 1999 Lexus IS. In addition, the cost of maintenance, including insurance, on 1999 Lexus IS would be higher. At 2,987 cc (6 cylinders), 2007 Mercedes-Benz R is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz R (187 HP @ 4000 RPM) has 34 more horse power than 1999 Lexus IS. (153 HP @ 6200 RPM) In normal driving conditions, 2007 Mercedes-Benz R should accelerate faster than 1999 Lexus IS. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz R weights approximately 826 kg more than 1999 Lexus IS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Mercedes-Benz R is four wheel drive (4WD), it will have significant more traction and grip than 1999 Lexus IS. In wet, icy, snow, or gravel driving conditions, 2007 Mercedes-Benz R 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, 2007 Mercedes-Benz R (440 Nm @ 1400 RPM) has 245 more torque (in Nm) than 1999 Lexus IS. (195 Nm @ 4600 RPM). This means 2007 Mercedes-Benz R will have an easier job in driving up hills or pulling heavy equipment than 1999 Lexus IS. 2007 Mercedes-Benz R has automatic transmission and 1999 Lexus IS has manual transmission. 1999 Lexus IS will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Mercedes-Benz R will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Lexus IS | 2007 Mercedes-Benz R | |
| Make | Lexus | Mercedes-Benz |
| Model | IS | R |
| Year Released | 1999 | 2007 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 1988 cc | 2987 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 153 HP | 187 HP |
| Engine RPM | 6200 RPM | 4000 RPM |
| Torque | 195 Nm | 440 Nm |
| Torque RPM | 4600 RPM | 1400 RPM |
| Engine Bore Size | 75 mm | 83 mm |
| Engine Stroke Size | 75 mm | 92 mm |
| Engine Compression Ratio | 10.0:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1400 kg | 2226 kg |
| Vehicle Length | 4410 mm | 4930 mm |
| Vehicle Width | 1730 mm | 1930 mm |
| Vehicle Height | 1430 mm | 1660 mm |
| Wheelbase Size | 2680 mm | 2990 mm |
| Fuel Tank Capacity | 70 L | 80 L |
