2008 GMC Acadia vs. 2005 BMW 645
To start off, 2008 GMC Acadia is newer by 3 year(s). Which means there will be less support and parts availability for 2005 BMW 645. In addition, the cost of maintenance, including insurance, on 2005 BMW 645 would be higher. At 4,392 cc (8 cylinders), 2005 BMW 645 is equipped with a bigger engine. In terms of performance, 2005 BMW 645 (326 HP @ 6100 RPM) has 50 more horse power than 2008 GMC Acadia. (276 HP @ 6600 RPM) In normal driving conditions, 2005 BMW 645 should accelerate faster than 2008 GMC Acadia. With that said, vehicle weight also plays an important factor in acceleration. 2008 GMC Acadia weights approximately 246 kg more than 2005 BMW 645.
Because 2005 BMW 645 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 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2008 GMC Acadia, 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 BMW 645 (447 Nm @ 3600 RPM) has 107 more torque (in Nm) than 2008 GMC Acadia. (340 Nm @ 3200 RPM). This means 2005 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2008 GMC Acadia.
Compare all specifications:
| 2008 GMC Acadia | 2005 BMW 645 | |
| Make | GMC | BMW |
| Model | Acadia | 645 |
| Year Released | 2008 | 2005 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3600 cc | 4392 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 276 HP | 326 HP |
| Engine RPM | 6600 RPM | 6100 RPM |
| Torque | 340 Nm | 447 Nm |
| Torque RPM | 3200 RPM | 3600 RPM |
| Engine Compression Ratio | 10.2:1 | 10.5:1 |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 8 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2141 kg | 1895 kg |
| Vehicle Length | 5110 mm | 4830 mm |
| Vehicle Width | 2010 mm | 1860 mm |
| Vehicle Height | 1860 mm | 1380 mm |
| Wheelbase Size | 3030 mm | 2890 mm |
| Fuel Consumption | 9.8 L/100km | 10.2 L/100km |
| Fuel Consumption Overall | 12.4 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 83 L | 70 L |
