is this breach of contract

[sheila514]

a contract was written by mr x for his brother mr y.it was drawn up to sell a motor vehicle to mr z.just over half is paid by mr z when car acts up so is taken for pre mot.results are its a death trap. it would cost more to put right than car is worth< top price>mr z is worried he can be taken for breach of contract as hes only had vehicle for 10 weeks and problems with car have gone way before he purchased it.