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In-depth reviews

Lexus RX review - MPG, CO2 and Running Costs

A top company car tax choice thanks to low emissions but real-world mpg may not live up to official figures

Despite a 3.5-litre six-cylinder petrol sitting under the bonnet, the RX 450h hybrid is surprisingly economical. With the smaller wheels it manages an impressive 54.3mpg on the combined cycle, which is 9.5mpg up on the previous RX. Go for the larger wheels and the figure drops to 51.4mpg. Again, unless you've got a very light right foot, you may struggle to match these numbers in every day driving. With a bit of extra weight on board, the RX-L 450h dips a little to 47.1mpg.

Emissions of 120g/km (127g/km with 20-inch wheels) mean the 450h is cheap to tax, but more impressive is the 25 per cent (or 26 per cent for higher trims) company car tax rate. The RX-L steps up to 136g/km in SE trim though, pushing things up to 28 per cent.

There's plenty of standard kit too, so you won't feel like you're missing out on optional extras.

Depreciation

Residual values for all RX models are particularly strong, and you can expect it to hold its value better than a Volvo XC90, a BMW X5 and some Audi Q7 variants. After three years and 30,000 miles, an RX or RX-L should retain at least 50 per cent of its value, with our choice - the RX 450h Luxury - predicted to keep 55 per cent of its worth according to residual specalists.

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Which Is Best

Cheapest

  • Name
    450h 3.5 5dr CVT
  • Gearbox type
    Auto
  • Price
    £49,924

Most Economical

  • Name
    450h 3.5 5dr CVT
  • Gearbox type
    Auto
  • Price
    £49,924

Fastest

  • Name
    450h 3.5 5dr CVT
  • Gearbox type
    Auto
  • Price
    £49,924
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