The 1994 Nissan B-13 has been a solid car and will last for years to come if you maintain it right. I would IMO, test drive it and get a feel for it but always and expect everything on the car. Remember it is a 1994 so, it does have good miles on the car but the wear and tear will go along with it like tires, brakes, transmission, Driver side seat etc. You also might want to check if this B-13 has any rust too. Parts for these cars are not that hard to find as there are a lot of used parts and junk yards too.
