Hands down!!!!!! 1969 mustangs had more room inside than the newer ones!!!! Not to mention leg room for the driver and rear seat passengers as well. I'm a big guy and looked at buying a 1999 Mustangand I didn't fit(6'1" 280 lb) My friend who works at Ford at the Sharonville transmission plt has a 1969 429 Mustang and not only have I sat in the rear seat but also driven it home for him when he bought it . There is no comparison between the newer ones and the older ones. p.s. 1 chance seems to have missed his 1 chance to answer your question didn't he? which was roominess for the driver ,not competion testing