The second-generation CLS became a more viable fleet option after its launch earlier this year, not least because of its new four-cylinder diesel.

The 250CDI emits 135g/km, putting it in a 20% benefit-in-kind band along with official consumption of more than 55mpg. That means it’s six tax bands lower than the 160g/km CLS 350CDI with a 3.0-litre engine.

Driving the 250CDI is a pleasure with the 202hp providing plenty of power and the seven-speed auto coping well at any speed.

Design-wise the updated CLS has a new front grille resembling the brand’s SLS supercar and full LED headlights.

When the car launched in 2005 it was the first of its kind, a four-door coupe-saloon mix, but now models such as the Audi A7 Sportback and BMW 5-series GT compete. The nearest equivalent A7, a 3.0-litre TDI 204hp auto – but also with 135g/km – wins hands down on whole-life costs at 83ppm versus 96ppm for the CLS. However, this latest development for the Merc is an exciting prospect for fleets that couldn’t previously justify the CO2.

Mercedes Benz CLS250 CDI BlueEff auto
P11D price ££46,615
Model price range £46,615-£80,645
Fuel consumption 54.3mpg
CO2 (tax) 135g/km/(20%)
BIK 20/40%
per month
£155/£311
Insurance group 44
Warranty 3yrs/unlimited mls
Boot space (min/max) 520 litres
Engine size/power 2143cc/204hp
Top speed/0-62mph 150mph/7.5secs
Score 9/10
Verdict A no-brainer for
fleet managers with
high-maintenance
bosses