A bright yellow-painted three-wheeled car developed by Dutch company, Trigger Technics, has become the latest tourist attraction in San Francisco.

Tour company, GoCar, has purchased eight of the Trigger 50 cars and fitted them with a revolutionary GPS-driven (Global Positioning System) audio guide that literally talks the driver through a tour.

This includes visits to such city landmarks as Fisherman’s Wharf, the Golden Gate Bridge – but strictly not, says the company, over it – the Haight Ashbury district and Ocean Beach. It also features a trip down Lombard Street, allegedly the crookedest street in the world.

Clear navigating instructions are provided and a commentary is given as each of a number of attractions is passed. Hire is by the hour or the day – with a tour lasting about two hours – and interest since the concept started has led to GoCar moving to double its fleet.

The cars are also available for general hire for those people wishing to do their own tour.

The 2-seater Trigger 50 has a 2-stroke 50cc engine – which, points out GoCar, provides more than enough power to handle San Francisco’s hills – and a 1.5-gallon petrol tank which gives it a range of 60 – 80 miles. Top speed is 30mph and steering is via a moped-type handlebar incorporating a hand throttle and brakes.

They are fully equipped with indicators, brake lights, headlights, a horn and dual disc front brakes and are built on a steel frame with a fibreglass body. They also come with a stainless steel roll cage, luggage space within the body and a luggage rack.

The cars weigh only 380lbs and, at a little under 8ft in length, shouldn’t present too much in the way of problems with parking. Colours available are yellow, red, blue and white but the company will discuss requests for others.

leisure-kit keyword: Trigger