2003 Alfa Romeo 166 vs. 2007 Mercedes-Benz GL
To start off, 2007 Mercedes-Benz GL is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 166 would be higher. At 4,663 cc (8 cylinders), 2007 Mercedes-Benz GL is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz GL (335 HP @ 6000 RPM) has 88 more horse power than 2003 Alfa Romeo 166. (247 HP @ 6200 RPM) In normal driving conditions, 2007 Mercedes-Benz GL should accelerate faster than 2003 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz GL weights approximately 890 kg more than 2003 Alfa Romeo 166. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Mercedes-Benz GL is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alfa Romeo 166. In wet, icy, snow, or gravel driving conditions, 2007 Mercedes-Benz GL 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 GL (460 Nm @ 2700 RPM) has 171 more torque (in Nm) than 2003 Alfa Romeo 166. (289 Nm @ 4800 RPM). This means 2007 Mercedes-Benz GL will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 166. 2007 Mercedes-Benz GL has automatic transmission and 2003 Alfa Romeo 166 has manual transmission. 2003 Alfa Romeo 166 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Mercedes-Benz GL will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alfa Romeo 166 | 2007 Mercedes-Benz GL | |
| Make | Alfa Romeo | Mercedes-Benz |
| Model | 166 | GL |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3177 cc | 4663 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 335 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 289 Nm | 460 Nm |
| Torque RPM | 4800 RPM | 2700 RPM |
| Engine Bore Size | 93 mm | 92.9 mm |
| Engine Stroke Size | 78 mm | 86 mm |
| Engine Compression Ratio | 10.5:1 | 10.7:1 |
| Top Speed | 245 km/hour | 235 km/hour |
| Acceleration 0-100mph | 7.4 seconds | 7.9 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1540 kg | 2430 kg |
| Vehicle Length | 4730 mm | 5090 mm |
| Vehicle Width | 1810 mm | 1930 mm |
| Vehicle Height | 1420 mm | 1850 mm |
| Wheelbase Size | 2550 mm | 3080 mm |
| Fuel Consumption Overall | 12.5 L/100km | 13.4 L/100km |
| Fuel Tank Capacity | 69 L | 100 L |
