Britain’s biggest new car discounters have been revealed ahead of the introduction of the new ‘20’ registration plate on 1 March, with Citroën dealers offering the biggest cash discounts on average, but with the Fiat Tipo attracting the biggest individual percentage discount, with close to 30 per cent available off its RRP. Research by What Car? – which guarantees shoppers on its website at least these savings – found Citroën dealers are slashing prices by an average of 16.44 per cent, meaning buyers save an average of £4431 on a new Citroën.