Technomap who do a TB conversion on the clios achieve 220bhp which makes the cars faster than a mk1 v6. The new 255 bhp v6 would still have a power advantage although I dont know how much they weigh and I was disappointed to read about 5.8s on 0-60. A cup or mk1 172 on TBs will probably beat that 0-60
Viceroy have a look at the technomap.fr site under clioTMP 220 they have a torque and power graph