2007 BMW Convertible vs. 2009 Ascari KZ1
To start off, 2009 Ascari KZ1 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW Convertible. In addition, the cost of maintenance, including insurance, on 2007 BMW Convertible would be higher. At 4,941 cc (8 cylinders), 2009 Ascari KZ1 is equipped with a bigger engine. In terms of performance, 2009 Ascari KZ1 (500 HP @ 7000 RPM) has 138 more horse power than 2007 BMW Convertible. (362 HP @ 6300 RPM) In normal driving conditions, 2009 Ascari KZ1 should accelerate faster than 2007 BMW Convertible. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Convertible weights approximately 500 kg more than 2009 Ascari KZ1.
Let's talk about torque, 2009 Ascari KZ1 (550 Nm @ 4500 RPM) has 60 more torque (in Nm) than 2007 BMW Convertible. (490 Nm @ 3400 RPM). This means 2009 Ascari KZ1 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Convertible. 2007 BMW Convertible has automatic transmission and 2009 Ascari KZ1 has manual transmission. 2009 Ascari KZ1 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW Convertible will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW Convertible | 2009 Ascari KZ1 | |
| Make | BMW | Ascari |
| Model | Convertible | KZ1 |
| Year Released | 2007 | 2009 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 4799 cc | 4941 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 362 HP | 500 HP |
| Engine RPM | 6300 RPM | 7000 RPM |
| Torque | 490 Nm | 550 Nm |
| Torque RPM | 3400 RPM | 4500 RPM |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Acceleration 0-100mph | 5.7 seconds | 3.7 seconds |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1850 kg | 1350 kg |
| Vehicle Length | 4830 mm | 4300 mm |
| Vehicle Width | 1380 mm | 1852 mm |
| Vehicle Height | 1860 mm | 1138 mm |
| Wheelbase Size | 2790 mm | 2636 mm |
