I have recently had my Octavia 1.8T Elegance-150hp upgraded to 193hp. Does anyone have experience with this upgrade and can inform me about the performance of the car in terms of 0-100 km/h acceleration and maximal speed. The official Skoda engineers here in Greece carrying-out the modification claim that the figures are: 0-100 km/h in 7.8sec and maximal speed of 231 km/h. Do you agree with these numbers?