>At 5'4" I sit quite low in a B13. Are seats >interchangeable among the various '91-'94 Sentra >models, or could I port backward a B14 seat that might >raise me up a bit? Yes, the B14 seat fits in a B13 but it has less bolstering (side support) than the classic's seats. You could try putting B14 seat rails on your B13 seats. Good luck, Jason Schymanski