Subaru Impreza WRX STI.
What to Check Before Buying.

The Subaru Impreza WRX STI suits performance enthusiasts seeking genuine four-wheel-drive capability and rally-bred engineering. This high-performance variant appeals to drivers who prioritise handling dynamics over fuel economy, with typical consumption hovering around 25-30 mpg. The turbocharged boxer engine delivers thrilling acceleration and the renowned symmetrical all-wheel-drive system provides exceptional grip in all conditions. However, insurance costs sit firmly in the higher groups and parts can be expensive compared to mainstream alternatives. When inspecting a used WRX STI, scrutinise the service history carefully as these cars are often driven enthusiastically. Check for signs of modified engine management systems or aftermarket parts, which can affect reliability and insurance validity. Listen for any rumbling from the turbocharger and inspect the clutch for wear, as replacements prove costly. Examine the wheel arches and underside for corrosion, particularly on pre-2007 models. Compression tests on all four cylinders help identify potential head gasket issues, a known weakness on earlier 2.5-litre variants.

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