The MERCEDES-BENZ GLB is a premium compact SUV, sitting between smaller family crossovers and larger seven-seat models in the UK market. Its upright shape gives it a more purposeful look than many rivals, while the cabin is designed to feel smart and comfortable. Depending on version, it can be found with five or seven seats, making it an unusually flexible choice for its size. That extra flexibility suits families needing room for children, shopping or weekend luggage, and drivers wanting a premium-feeling everyday car rather than a bulky full-size SUV. It competes with the BMW X1, Audi Q3 and Volvo XC40, but its optional third row is a useful distinction. mycarcheck.com has recorded 8,228 GLB checks covering 5,011 different VINs, giving a substantial snapshot of used examples. Checks show average recorded mileage of 32,000, annual use of 9,000 miles and private-sale value near £30,200, useful benchmarks when comparing used GLBs.