Hello, I have been driving a Twingo Bauj.2000 60Ps since last summer and have just no plan, because the car has been standing in the workshop for a week, everything was tried, I have almost 400 euros less and the car still has the same problems. He does not jerk and starts immediately, but he does not arrive in the 5th course over 135 kmh and that even with effort!? The cat is not, when reading out with the measuring device no errors were shown. The engine oil was refilled, petrol filter, air filter, spark plugs, oil change, oil filter, new water pump, timing belt was replaced and correctly, brakes are ok, new wheel bearings in front, and another sensor replaced. What was not done are valves, cylinder head seal and carburetor… (The screwdriver said there was nothing, or the valves would devour extra money again and whether the problem is settled) Coupling is OK! Normally he has shorter spring legs in front and the sport rims.I have built in the normal springs for the winter tyres, but can’t imagine it could be because of it!? Should someone be able to help me or tell me where to go with it best without spending a fortune (which I don’t have) I would be really super grateful….