Which names 'unreliable' cars

Which? has singled out the BMW 3 series convertible as the car that spends the most time per year in the garage being repaired.

In its 2012 car survey the consumer group named the cars that spend most time per year being repaired, and those that spend the least.

It found that the BMW 3 series convertible is the least reliable car on the market, spending nearly 3.5 days per year in the garage.

According to Which?, this is almost a day more than other cars on the market.

The car that spends the least time off the road is the Honda Jazz, at only 0.17 days per year.

Which? also found that cars that are just outside of their warranty period and between four and eight years old are the most likely to be repaired.

Which? said: "These cars are likely to be outside the warranty period - making repairs a potentially much greater expense."

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