The Geneva Show always has a surprise or two in store and this year is no exception. This is the international event that many of the manufacturers use to launch new products into Europe or show off their styling exercises. William Woollard and Sue Baker look at some of the highlights and, with Frank Page, test three new cars coming on to the market, the 150 mph BMW M635CSi, the Mercedes 200 Series and Lancia's new small car.

With the recent launch of Sir Clive Sinclair's controversial new electric vehicle, interest has been rekindled in using electric traction for personal transport. This week William Woollard tests the Sinclair C5 and other contenders in the market, from both the UK and Denmark. Chris Goffey, meanwhile, points the way ahead with Peugeot's research vehicle - the 205 Electrique. Sue Baker road tests the latest sporting offer from Japan, the Toyota MR2. With the Budget only a week away Top Gear reports on the pressures on the Chancellor to replace Vehicle Excise Duty with a higher tax on petrol.

Over 3,000 young hopefuls try their hand at Brands Hatch Racing School every year and William Woollard follows in the tyre tracks of James Hunt to discover the joys and costs of single-seater racing. William Horsley reports from Japan on a prison where motoring offenders are taught to drive legally. Sue Baker travels on a novel form of public transport in Hong Kong, and David Minton checks on just how protective motorcycle clothing is.

As the motor industry prepares to celebrate its centenary, the 100th edition of Top Gear comes from the National Motor Museum at Beaulieu with William Woollard taking a nostalgic look at the joys and hazards of motoring over those years. It's also the 50th birthday of the driving test, and in that time it's changed very little. Frank Page asks if now, with more than 20 million licence holders on Britain's roads, the standards of 1935 are still good enough. He also takes to the road to test the Porsche 944 Turbo.

Spring not only brings the flowers, but also the caravans from their winter hibernation. This week William Woollard looks at the new season's touring- and motor-caravans, and examines a new, safer towing hitch. Diesel cars have increased in popularity over the past few years, but are they a good investment? Sue Baker goes into the pros and cons, and tests a selection of diesels currently on the market.

William Woollard reports from a derelict 30-acre site in the heart of Birmingham that is being converted into an exciting new adventure centre for the young and unemployed. It provides facilities for everything that runs on wheels from roller-skates and BMX, to motorcycle scrambling and karting. Sue Baker has news of help for the disabled driver and Frank Page tries out the new Subaru 4x4 Turbo saloon.

William Woollard talks to Formula Three Champion, Johnny Dumfries at the launch of a tyre, claimed to be the 'fastest high performance tyre in the world', and asks if this new tyre technology means safer driving. Frank Page road tests the 126 mph MG Montego Turbo, while Sue Baker drives the 'Blackpool Flyer' - the TVR 390SE and tunes in to the latest in in-car entertainment.

With Spain about to join the EEC, William Woollard travels to Seat, the Spanish motor manufacturers in Barcelona, to look at their products and assess their impact on the British market. He also visits Coventry to find out more about an all- British development in four-wheel-drive technology that is catching on with the major car companies. Four-and-a-half million used cars are bought and sold each year and for many buyers this can be a traumatic, and sometimes expensive, business. Frank Page gives hints on best buys and points out potential weaknesses.