Hummer.
What to Check Before Buying.

Hummer vehicles were built as uncompromising off-roaders with military DNA, primarily sold in the US market between 1992 and 2010. UK examples are rare imports, typically the H2 or H3 models, bringing massive road presence and genuine go-anywhere capability. Fuel economy is dire, parts are expensive and often need importing, and running costs will shock anyone used to conventional vehicles. Buyers need to verify import history, check for corrosion from UK roads, and ensure all systems work properly before committing.

The average used car has 3+ known model faults the seller won't mention.