Yes, ST170 is old now and many were dogged with reliability problems from new.
As all of them are now out of warranty I'd steer clear.
The ST150 is not as refined as the ST170 but is quicker, the 6-speed box in the ST170 really let it down.
I find the ST quite good on fuel, 30ish MPG is not bad for a 2-litre and the insurance isn't that bad either.
Because of the packaging and cost constriants of developing this car they can be a bit tempremental due to the ignition and catalyst design.
Do not run it on cheap Supermarket fuel (exept Sainsbury's Super which is very very good).
I find somedays it's a little rocket then others it's just about quicker through the mid-range than a 1.3 LX.
Nothing that a good air-filter, plugs, leads and exhaust won't sort.
I personally feel the handling isn't as good as some make out, true, if you're on a perfectly smooth bit of tarmac it is really fantastic, but here in the UK that's a rareity and it seems to get unsettled off line when cornering on bumpy surfaces.
There's definately NO one handed driving to be done in the ST150 else you'll get the wheel snatched out of your hand. You soon get used to it though.
To be fair to it though, for the cost and running costs, it's a good little car.
I'm on number two and am considering ordering number three for March 08 (in black again though)
Hope this helps
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