The BMW Z4 has been on sale since 2002 so few passers-by will take time to notice the innocuous new 2.0-litre version making its first public appearance at the Geneva Motor Show. And why would they notice it? Only 16-inch alloys and discreet "2.0i" badging on the wings sets it apart from its more endowed brethren.

Buyers itching to get into the stylish open-top BMW at the first rung of the ladder don't have to slum it quite as much as you may imagine. Even the cheapest Z4 2.0i has alloys, Dynamic Stability Control and climate control, though there will be an SE version with more equipment as standard such as fog lights and the on-board computer, for more money obviously.

More importantly, buyers are not short changed on the Z4's dynamics. The 2.0i is likely to be a little softer than the more powerful models in the range, but perhaps more comfortable too. The engine itself is lighter than the straight-six units available in the rest of the range, so should help with the car's agility. Peak power is quoted as 150bhp, with the maximum torque of 148lb.ft available at only 3,600rpm. While not likely to scare many drivers, the Z4 2.0i will hit 62mph in 8.2 seconds, and hair-do allowing, will top 136mph.

This is no bargain basement power unit either, featuring BMW's latest technology such as Vanos (BMW's style of variable valve timing) and Valvetronic (BMW's variable valve lift system). This engine is actually built in the UK, and is also available in the 1-series. Following the Geneva launch, prices will be announced.

Shane O' Donoghue - 23 Feb 2005