>Similarly, it will avoid making unwanted upshifts when the accelerator pedal is lifted - particularly good for cross-country blasts. As with all Xantias, the V6 Exclusive has an unconventional Hydractive computer controlled suspension set up that combines MacPherson struts up front and trailing arms at the rear with Citroen's gas cushioned spheres replacing more conventional shock absorbers. Externally the Xantia Exclusive can be distinguished by its unique 6Jx15 alloy wheels shod with 205/60 R15 tyres, deep chin spoiler with larger air intake, twin exhaust tail pipes and subtle V6 badging. Larger 283mm discs (front) and 224mm discs (rear) are also fitted to the V6 so it can cope with the extra power.

https://www.hagerty.co.uk/articles/car-profiles/vita-activa-memories-of-a-performance-oddity/