A 2WD, mid-engine rally car, powered by a 2.5 litre engine producing over 300HP. Spectacular to watch in person, so I imagine it'd be spectacular to drive as well. The car also comes in race spec.
Note: The race version above has been modified to include a Rover V8.
When I red this thread title I thought it was a mis-spelling of Davrian, but after checking their website I find that the cars used to called Davrians and are now Darrians.
Davrians were very popular in British motorsport particularly when powered by the all alloy Hillman Imp engine - I posted pictures and details on the Hillman Imp thread. The Imp version had a RR configuration, there was also a mini powered version which was MR. The Davrian was co-designed by former Ferrari F1 driver and engineer Mike Parkes.