The air conditioning pump was leaking on purchase (agreed fix with dealer).
It had also just had the entire exhaust system replaced.
I'm overall happy with the car and with hindsight would purchased it again.
Its not a cheap car to fuel, but looking at the whole cost of running its not too bad - economy of 26mpg, tyres lasting 20k.
Would I buy a new one - yer right; £32k new and £7k at 4 years and 65k miles (full Vauxhall service history).
I've since had a problem with the electrics - one of the three coils packed up, meaning 4 cylinders not 6.
And its not a cheap (dealer due to needing the ECU computer) fix. Includes coil at £120, HT leads at £100, 4 hours labour, computer time, etc.