Yes you can and you should always ask the seller to test drive a used car before hanging over your money. Remember that even for a test drive, you need to be insured to be able to drive someone else's car. The vehicle also need to have a valid MOT and needs to be taxed, therefore we recommend checking these things before. You can check vehicle's tax and MOT for free with Car Guide. All you need is the reg. Check a car for free here.