BMW revealed new Z4 roadster which will go on sale in March, 2013. Currently BMW’s only two seat drop-top to be offered, the BMW Z4 now comes with a new entry-level sDrive18i, while at the same time the Pure Traction Design package boasts a level of sophistication and high specification not seen on a Z4 before.
| Model | Price | Power | Torque | Zero – 62mph | Top Speed | Combined | CO2 Emissions |
| from | Hp | Nm | Seconds | Mph | Mpg | g/km | |
| BMW Z4sDrive18i | £27,610 | 156 | 240 | 7.9 (8.1) | 137 | 41.5 | 159 |
| BMW Z4 sDrive20i | £29,710 | 184 | 270 | 6.9 | 146 (144) | 41.5 | 159 |
| BMW Z4 sDrive28i | £34,095 | 245 | 350 | 5.7 (5.5) | 155* | 41.5 | 159 |
| BMW Z4 sDrive35i | £39,915 | 306 | 400 | 5.2 (5.1) | 155* | 30.1 (31.4) | 219 (210) |
| BMW Z4 sDrive35is | £45,795 | 340 | 450 | -4.8 | 155* | 31.4 | 210 |
The new BMW Z4 sDrive18i engine heralds a new entry point into BMW Z4, 2.0-litre four-cylinder twin-scroll turbocharged engine that generates 156 hp at 5,000 rpm from its 1,997cc engine and it is capable of 0 to 62 mph time of 7.9 seconds before going on to a top speed of 137mph. It manages to do this while still recording 41.5mpg and emissions of just 159g/km.
The BMW Z4 sDrive20i comes with a 184hp engine that achieves 41.5mpg and 159g/km CO2. The model is the most popular derivative of Z4 currently accounting for 80 per cent of sales.
Further up the range and the four-cylinder twin-scroll turbocharged sDrive28i, and the six-cylinder twin-turbocharged sDrive35i and the sDrive35is offer customers greater performance courtesy of their respective 245hp, 306hp and 340hp power outputs. All cars are rated at an electronically-limited 155mph top speed.
Transmitting the power to the road is a six-speed manual gearbox as standard. Customers can also specify an eight-speed automatic with gear shift paddles located on the steering wheel, while buyers of the BMW Z4 sDrive35is have a seven-speed Double Clutch Transmission, again with gear shift paddles, as standard.
Design wise the winning formula of the BMW Z4 styling has only had minor enhancements mid-life. The headlights now include white LED corona rings and a white ‘eyebrow’ with additional chrome detailing, while in profile the side gill features chrome detailing and LED side repeater lights.