Audistic people choose to pay way over the odds for a tarted up Skoda with Audi badges because they think it projects a positive message to the world about how fantastic they wish they were.
The Audism spectrum has a fairly wide span, from the merely irritating A2 driver to the utterly unbearable Q7 owner, with varying shades of affliction between them. There's also the more recent electric variant, who suffer from similar symptoms but with greater smugness.
Most other people just buy a box on wheels that will move them around the place for a reasonable price. So for non-afflicted people their car doesn't say anything about their personality, but for Audistic people it tells the world all about their deep-rooted insecurities.