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The uni found the reason behind that sticky steering wheel - an average of 700 different types of bacteria. The most common was bacillus cereus which causes food poisoning.
That compares with 80 distinct bacteria types on a public toilet seats.
Researchers also found that the inside of a car's boot contains even more filth - up to 1000 bacteria types per square inch. The reason cars are so filthy is simple; we don't clean them. Researchers say while we vacuum, dust and disinfect our home on a semi-regular basis, only one third of study participants clean their vehicle once a year or more.
Motorists may get rid of rubbish in the car and occasionally vacuum the carpet, but how often is the steering wheel wiped down? Beyond cleanliness, the study also found that many drivers know little about their cars.
For example, two-third don't know how to change a tyre and one third of those surveyed don't know how to put air in the tyres. In the meantime, tell your kids: Wash your hands after driving that car!
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