The Ford Fiesta is the UK’s best-selling car. That’s according to official figures released by the Society of Motoring, Manufacturing and Traders who revealed the new car market has grown by 2.5% in the last year. Ford’s Fiesta received 8,236 new car registrations this May - 2,507 sales, which is 1.3 percentage points ahead of its nearest rival. The new Fiesta with Ford’s 1.0-litre EcoBoost engine offers fuel-efficiency of up to 65.7 mpg and costs from £10,345 OTR.