• What Car? reveals the biggest car tax risers ahead of new VED rules due on 1 April
  • Some models will command almost 25 times more tax than before
  • Even greener hybrids are hit but still qualify for government grants of up to £2,500
  • Six out of 10 top sellers incur eye-watering tax increases
  • Great deals still available at What Car?’sNew Car Buyer Marketplace

Imminent changes to Vehicle Excise Duty (VED) mean consumers have just over a week to secure a deal on a new car before tax rates soar by up to 2475%.

Analysis by What Car? has shown that the cost of taxing a car purchased after 1 April 2017 could be up to 25 times more, with even some of the most environmentally friendly plug-in hybrids commanding sharp tax increases.

 It’s conventional hybrids such as the Lexus GS300h and RX450h that will be hit hardest, however. These have traditionally been an attractive option for those seeking a luxury car with small-car emissions, because under the outgoing legislation, the GS300h costs owners as little as £20 to tax over three years and the RX450h £40. But under the new rules, that increases to £1,010 and £1,030 respectively.

 Under the new legislation, only zero-emissions cars costing less than £40,000 will be free to tax, but buyers still have a few days to make significant savings by purchasing before the 1 April deadline, using the new What Car? New Car Buyer Marketplace, which lets people compare discounts from dealers in their area.

In the case of the GS300h hybrid, the near-£1000 hike in the three-year tax bill is made up of a £150 first-year rate based on its CO2 emissions, followed by two subsequent payments of the new hybrid flat rate of £130 per year, which applies to all vehicles with emissions above 0g/km CO2.

 In addition, all vehicles that cost more than £40,000 are subject to a further £310 a year charge between years two and six. As a result, three-year tax bills on the Porsche Cayenne E-Hybrid, Mitsubishi Outlander PHEV and Volvo XC90 T8 and Audi Q7 E-tron will also jump from zero to as much as £1,000.

 On the up side, the Audi, Mitsubishi and Volvo remain eligible for a government grant of £2,500 thanks to their low CO2 emissions of less than 75g/km, and if buyers order before the tax hike they could save almost half as much again.

 Motorists who flocked to buy one of Britain’s top sellers in the first months of 2017 are also likely to have avoided a hefty tax premium and could still do so if they move quickly. Six of 2017’s top 10 sellers are among the highest risers. Certain derivatives of the Vauxhall Astra, Ford Focus, Nissan Qashqai, Mercedes C-Class, Audi A3 and BMW 3-Series will command an extra tax bill of between £400 and £1,000 over three years.

 What Car? editor Steve Huntingford said: “The new tax laws are designed to increase the advantage of running a zero emissions car, but they make things much more complicated and push up the price of many ‘bread and butter’ models. Fortunately, there are still opportunities to get a great deal.

 “Buyers still have a small window to snap up a bargain before 1 April, and there are a number of grants for plug-in hybrids at their disposal. Tax aside, valuable savings can be made by using the What Car? New Car Marketplace to get the best possible price.”

 The latest deals can be found at

 Top 10 tax increases

 Make/ModelSegmentFuel typeCost of tax for three years – 2016/17Cost of tax for three years – 2017/18Cost increase over three yearsPercentage Change over three years
Lexus RC 300h 2.5 F-Sport 2dr CVT AutoCoupePetrol Hybrid£40£1,030£9902475%
Mercedes-Benz C250d AMG Line Premium 2dr AutoCoupeDiesel£60£1,060£1,0001667%
Mercedes-Benz CLA 45 4Matic Yellow Night Edition 4dr Tip AutoCoupePetrol£60£1,060£1,0001667%
Lexus RX 450h 3.5 SE 5dr CVT AutoLarge SUVPetrol Hybrid£40£1,030£9902475%
Audi A6 3.0 TDI S Line 4dr S TronicExecutiveDiesel£60£1,060£1,0001667%
Mercedes-Benz C250d AMG Line Premium Plus 4dr 9G-TronicExecutiveDiesel£60£1,060£1,0001667%
Mercedes-Benz E200d AMG Line Premium 4dr 9G-TronicExecutiveDiesel£60£1,060£1,0001667%
Lexus GS300h 2.5 F-Sport 4dr CVTExecutivePetrol Hybrid£40£1,030£9902475%
Audi A5 2.0 TDI Sport 2dr S TronicConvertibleDiesel£60£1,060£1,0001667%
Mercedes- Benz C220d AMG Line 2drConvertibleDiesel£60£1,060£1,0001667%

Hybrid tax increases

Make/ModelSegmentFuel typeCost of tax for three years – 2016/17Cost of tax for three years – 2017/18Cost increase over three yearsPercentage Change over three years**
Lexus RX 450h 3.5 SE 5dr CVT AutoLarge SUVPetrol Hybrid£40£1,030£9902475%
BMW X5 xDrive40e SE 5dr AutoLarge SUVPetrol Hybrid£0£970£970N/A
Porsche Cayenne S E-Hybrid 5dr Tiptronic SLarge SUVPetrol Hybrid£0£895£895N/A
Audi Q7 3.0 TDI Quattro e-tron 5dr Tip AutoLarge SUVDiesel


Mitsubishi Outlander 2.0 PHEV 4hs 5dr AutoLarge SUVPetrol Hybrid£0£880£880N/A
Volvo XC90 2.0 T8 Hybrid Inscription 5dr GeartronicLarge SUVPetrol Hybrid£0£880£880N/A

UK top sellers

Make/ModelTypeModel’s overall UK sales chart position*FuelCost of tax for three years – 2016/17Cost of tax for three years – 2017/18Cost increase over three years% Change over three years**
Vauxhall Astra Astra 1.0T 12V ecoFLEX Design 5dr EasytronicHatchback3Petrol£0£400£400N/A
Ford Focus FOCUS 1.5 TDCi 120 ST-Line Navigation 5dr PowershiftHatchback4Diesel£0£400£400N/A
Nissan Qashqai 1.5 dCiAcenta [Comfort Pack/Tech Pack] 5drSmall SUV5Diesel£0£400£400N/A
Mercedes-Benz C350e Sport Premium 4dr AutoExecutive6Petrol Hybrid£0£895£895N/A
Audi A3 1.6 TDI SE 5dr S TronicHatchback8Diesel£0£400£400N/A
BMW 340i M Sport 5dr Step Auto [Business Media]Executive10Petrol£555£1,400£845152%
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