2005 BMW 325 vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 BMW 325. In addition, the cost of maintenance, including insurance, on 2005 BMW 325 would be higher. At 2,996 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (261 HP @ 6600 RPM) has 77 more horse power than 2005 BMW 325. (184 HP @ 7400 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2005 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 325 weights approximately 62 kg more than 2007 BMW Z4.
Let's talk about torque, 2007 BMW Z4 (315 Nm) has 78 more torque (in Nm) than 2005 BMW 325. (237 Nm). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 325.
Compare all specifications:
| 2005 BMW 325 | 2007 BMW Z4 | |
| Make | BMW | BMW |
| Model | 325 | Z4 |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 2996 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 184 HP | 261 HP |
| Engine RPM | 7400 RPM | 6600 RPM |
| Torque | 237 Nm | 315 Nm |
| Engine Bore Size | 84 mm | 85 mm |
| Engine Stroke Size | 75 mm | 88 mm |
| Engine Compression Ratio | 10.5:1 | 10.7:1 |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1460 kg | 1398 kg |
| Vehicle Length | 4480 mm | 4230 mm |
| Vehicle Width | 1750 mm | 1790 mm |
| Vehicle Height | 1420 mm | 1270 mm |
| Wheelbase Size | 2730 mm | 2500 mm |
| Fuel Consumption Highway | 8.1 L/100km | 7.8 L/100km |
| Fuel Consumption City | 11.8 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 9.8 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 63 L | 55 L |
