Toyota Aqua.
What to Check Before Buying.

The Toyota Aqua is a compact hybrid hatchback sold primarily in Japan and exported as grey imports to the UK. Known for exceptional fuel economy and Toyota's hybrid reliability, it shares much of its drivetrain with the Prius. Most UK examples are imported used, so verifying service history, import paperwork, and hybrid battery condition is essential. Buyers should also watch for rust on older imported cars and check all electrics work correctly.

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