Lexus RX L 450h (2018-2022) running costs, insurance, warranty & tax

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

Overall rating

3.5 out of 5

Running costs rating

3.5 out of 5

Fuel Type:
Hybrid Petrol
Insurance groupWarrantyService intervalsAnnual company-car tax cost (20%/40%)
41-423yrs/60,000 miles1yr/10,000 milesFrom £4,182/8,364

Claimed fuel economy for the RX L is 34mpg, which isn't 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 cheaper to tax.

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 £885 to tax in the first year, but that's included in the price, For years two to six of ownership, you'll have to pay £510 for road tax (VED) with the RX L 450h, reverting to £155 a year after that.

Most Popular

Electric Ford Puma could become the UK’s best-selling EV
Ford Puma EV

Electric Ford Puma could become the UK’s best-selling EV

The Ford Puma EV is set to arrive in 2024 with a range of over 200 miles and a tweaked exterior design
22 May 2023
Seven-seat Volkswagen ID. Buzz set for 2 June reveal
Volkswagen ID. Buzz LWB teaser

Seven-seat Volkswagen ID. Buzz set for 2 June reveal

More practical Volkswagen ID. Buzz LWB will be revealed this week, before it’s joined by a GTX performance version later this year
30 May 2023
Tesla Model 3 facelift will be a double-edged sword
Tesla badge

Tesla Model 3 facelift will be a double-edged sword

Tesla’s updated EV will have an improved interior, greater range and a more affordable price – as well as one unfortunate drawback
1 Jun 2023