The problem from what i've heard on here and other forums is that a lot of st170s only have around 150bhp and cost around £3k more than a standard 2.0. So if you pay for mods on a 2.0 you you match a st170 for less. Also i've only just bought my 2.0 ghia about a month ago so i'll probs be keeping for a few years yet lol.