Many marks can be removed by an all-purpose cleaner (APC), but our test focused on more specialised products, including foams. To find our favourites, we sourced a tired carpet, and added felt tip ...

Q: Can you recommend a good upholstery cleaner? I have some tough stains that I cannot get out. The car is old, and I don’t want to take it to a detail shop. A: Depending on the interior material, a ...