Costs & verdict
Everyday costs, plus how reliable and safe it is
Costs, insurance groups, MPG and CO2
Looking at brochure prices, the GLB is competitively pitched against its premium seven-seat rival, the Land Rover Discovery Sport, as well as posh five-seat SUVs, such as the Audi Q5. If you aren't overly bothered about a premium badge, though, there are more affordable SUVs that can seat seven, such as the Peugeot 5008.
An upside of the GLB’s posh badge is that it depreciates quite slowly (although not as slowly as the Discovery Sport). And this helps its PCP finance deals look quite tempting when compared with those of some non-premium alternatives (although again the Discovery Sport has the advantage).
The GLB is too new to have featured in the 2020 What Car? Reliability Survey, but hopefully it’ll be more dependable than the Discovery Sport, which was one of the worst ranked cars. As a brand, Mercedes finished in 24th place out of 31; not overly encouraging but still ahead of Land Rover, which came last.
In terms of warranty, you get three years with unlimited mileage, which is pretty much standard for class. For added peace of mind you also get Mercedes roadside assistance when driving in the UK and Europe. If you want the best warranty a seven-seater SUV can offer, the Kia Sorento's lasts for seven years.