As good as that Renault was it IS a road going track car, a westfield with a roof in one way although slightly more refined.
9 secs is not a lot faster for a car thats 200kg less and on 888's, infact put some road tires back on that Renault and it wouldn't probably even manage to get under 8.30 with the amount of corners on that track.
Both awesome cars in their own right but ones a toy and the other is a fun and fast everyday car.