Can I reject a used car if the fuel economy is very different from what I was told?

Can I reject a used car if the fuel economy is very different from what I was told?

Is the engine oil light coming on a serious concern?

I purchased a 2008 Vauxhall Corsa 1.2 recently. Today it drove fine, but after an hour of driving I stopped to go to the shop and when I came back and started it the engine oil light came on for a minute...

I sold a car to a dealer who now wants a refund - where do I stand?

I sold my car to a dealer, who checked the car and had a test drive. My knowledge about car problems is none, so I didn't notice any mechanical issues. Next day the trader called me asking for a refund...

The garage have found a fault with a car I traded in - what are my rights?

I signed and drove an Audi away from a dealer on Friday. The garage now want me to go back as they have found a fault with the trade-in car. What are my rights? My car was bought as seen.