Warranty with used car from a dealer?

[Defcon5]

Ive been told that car dealers are required by law to give a 3 month warranty with the cars they sell?

Is this true? As i now need a new head gasket!

 

[Defcon5]

i got it at the start of january, its a v reg punto.

didnt buy it from a fiat dealer just a 2nd hand car dealer