Ive got a 200 box in my 07 plate 197, and with the box, I'm getting lower revs in 6th at standard speeds like 60mph and 70mph, which does help towards the mpg.
It defiantly feels more fun to say the least!!
Number of Forward Gears 6
Vehicle speed (mph) at 1000 rpm: in 1st gear 4.91
Vehicle speed (mph) at 1000 rpm: in 2nd gear 7.84
Vehicle speed (mph) at 1000 rpm: in 3rd gear 10.87
Vehicle speed (mph) at 1000 rpm: in 4th gear 13.70
Vehicle speed (mph) at 1000 rpm: in 5th gear 17.00
Vehicle speed (mph) at 1000 rpm: in 6th gear 20.36
Clio 197 (Might be data from the old box but I think its the revised box)
Number of forward gears 6
Gearbox BVM6
Vehicle speed (mph) at 1000 rpm: in 1st gear 5.18
Vehicle speed (mph) at 1000 rpm: in 2nd gear 8.46
Vehicle speed (mph) at 1000 rpm: in 3rd gear 11.11
Vehicle speed (mph) at 1000 rpm: in 4th gear 13.66
Vehicle speed (mph) at 1000 rpm: in 5th gear 17.00
Vehicle speed (mph) at 1000 rpm: in 6th gear 20.36