M16 Extreme Ride and Shine
Used for: six months Price: £9.98 Info: m16extreme.com I was dubious about using this because of the lairy name – an extreme polish implies it’s an aggressive cutting agent that’ll have you down to primer in no time. But it’s not. Instead, it’s very similar to more expensive stuff such as Autoglym, cutting through grime and giving a deep shine without stripping paint. Good value.