Megane RS3 or 4 will leave M3 and plenty of other cars for dead too its all about torque & how it puts it down on the road plus hot hatches have amazing power to weight ratios.
400-500-600+ BHP cars with mega engines are great too but they have to haul a chassis which weights 100-200KG more than a hot hatch the extra horsepower does not really kick in until you are well into 3 figures licence ending territory then & only then will you smoke a hot hatch!
If money was no object I would still take a hot hatch over something which had more weight & 400-600BHP as running costs on those are shocking vs a hot hatch uses a lot of petrol on the turbo engines but the other running costs are a lot cheaper to say an M3!!
A Golf R is around 1550kg whilst a McLaren 765LT is down around 1350kg. Even the heavier 720s is only 1450kg. A FWD hot hatch may be down around 1300-1350 but that lacks the traction of the heavier 4wd ones.