Ford Focus 1.6 TDCi (2005-2007)

Best tax-busting choices

The UK’s top-selling car is also one of the most tax-friendly – but not all variants benefit from the changes. Some petrol models will be hit hard: the 2.0-litre Zetec jumps £50 in April and will endure another £10 increase in 2010. Generally, all 1.6 TDCi Focuses will see a reduction in road tax next year. So will some 1.8-litre diesels, while the 2.0 should remain static. But the 88bhp 1.6 looks the best bet, as it has bags of torque. Supply is plentiful, too.

Used price range: £4,400-£11,200

CO2 emissions: 124g/km

2008 tax band/cost: C/£120

2009 tax band/cost: D/£90