2009 Porsche 911 vs. 2011 Chevrolet Avalanche
To start off, 2011 Chevrolet Avalanche is newer by 2 year(s). Which means there will be less support and parts availability for 2009 Porsche 911. In addition, the cost of maintenance, including insurance, on 2009 Porsche 911 would be higher. At 5,300 cc (8 cylinders), 2011 Chevrolet Avalanche is equipped with a bigger engine. In terms of performance, 2009 Porsche 911 (350 HP @ 6600 RPM) has 40 more horse power than 2011 Chevrolet Avalanche. (310 HP @ 5200 RPM). In normal driving conditions, 2009 Porsche 911 should accelerate faster than 2011 Chevrolet Avalanche. With that said, vehicle weight also plays an important factor in acceleration. 2011 Chevrolet Avalanche weights approximately 665 kg more than 2009 Porsche 911.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or 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, 2011 Chevrolet Avalanche (454 Nm @ 4400 RPM) has 54 more torque (in Nm) than 2009 Porsche 911. (400 Nm @ 4600 RPM). This means 2011 Chevrolet Avalanche will have an easier job in driving up hills or pulling heavy equipment than 2009 Porsche 911.
Compare all specifications:
| 2009 Porsche 911 | 2011 Chevrolet Avalanche | |
| Make | Porsche | Chevrolet |
| Model | 911 | Avalanche |
| Year Released | 2009 | 2011 |
| Body Type | Coupe | Pickup |
| Engine Position | Rear | Front |
| Engine Size | 3823 cc | 5300 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | boxer | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 350 HP | 310 HP |
| Engine RPM | 6600 RPM | 5200 RPM |
| Torque | 400 Nm | 454 Nm |
| Torque RPM | 4600 RPM | 4400 RPM |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1535 kg | 2200 kg |
| Vehicle Length | 4430 mm | 5630 mm |
| Vehicle Width | 1310 mm | 2020 mm |
| Vehicle Height | 1860 mm | 1950 mm |
| Wheelbase Size | 2360 mm | 3310 mm |
| Fuel Consumption Overall | 11.9 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 67 L | 117 L |
