Should I buy extras like shine protection, GAP protection etc for our used car?

My wife is buying a used car from a franchised dealer and, as expected, the sales pitch for various extras was employed. Life shine car protection: £350. Gap protection insurance: £399. Another insurance: £499. Total £1198, or a ‘car pack’ to include all three: £995. What is your opinion on extras such as these in general? I know a few years ago you recommended a car body protector but cannot remember what it was.

Asked on 24 August 2013 by PS, Ipswich

Answered by Honest John
200 per cent salesman's commission here. Autoglym Lifeshine is an excellent buy at £150-£200. £350 is too much. GAP insurance can usually be purchased from a broker for £100 - £150.
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