Lexus RX L 450h running costs

The Lexus RX L 450h could be attractive for company-car buyers compared to diesel alternatives, but it's expensive compared to plug-in hybrid SUVs

Lexus RX L
Insurance group Warranty Service intervals 2020/21 company-car tax cost (20%/40%)
41-42 5yrs / 100,000 miles 1yr / 10,000 miles From £3,844 / £7,687

Claimed fuel economy for the RX L is 34.4mpg, which isn't terribly groundbreaking. That said, nor is it particularly bad for a vehicle of this size.

Thanks to CO2 emissions of 185g/km, the RX L 450h qualifies for a lower Benefit-in-Kind (BiK) company-car tax rate than many of its diesel rivals. This makes it an attractive proposition for company car drivers, even if plug-in hybrid rivals like Volvo XC90 and BMW X5 are much cheaper and better to drive.

Lexus RX L 450h insurance group

The RX L falls into insurance group 42 in top-spec Takumi trim, which isn't far off the top whack 50 category. However, this is still lower than the Volvo XC90 T8 Twin Engine, so the RX L should be cheaper to insure.

Lexus also offers its own in-house insurance cover, giving you a courtesy car when your vehicle is in for repair and a protected no-claims discount if you’re hit by an uninsured driver.


Unlike their Toyota counterparts, all Lexus vehicles are covered by a standard three-year/60,000-mile warranty, but extended warranties are available for models up to 10 years old or 140,000 miles. The hybrid system and battery in the RX L are covered by a five-year/60,000-mile warranty.


The Lexus RX L requires servicing every 12 months and 10,000 miles. Lexus Service Plans allow you to combine all the servicing costs into monthly payments, with the price based on the length of plan, what’s included and how frequently you’d like to pay.

A Hybrid Health Check is included in all services, with a technician checking the entire system and providing a written report. This also includes a one-year/10,000-mile warranty on the battery.

Road tax

The Lexus RX L costs £860 to tax in the first year, rising to £465 for years two through to six. After that, road tax drops to £140 annually.


Lexus expects a third of RX buyers to opt for the L model, and we’d expect this exclusivity to boost residual values. Depreciation will be slowed by the absence of a diesel engine and the extra seats over the standard RX.