When Mathias and Nicolas did the 100 laps comparison test , we also recorded their top speed with the normal suit and with the Kartskin suit. Both drivers showed a 1 km/h topspeed difference. With the normal suit on, Mathias always showed a topspeed of 57 km/h and Nicolas 58 km/h , with the Kartskin suit on the topspeed for Mathias was 58 km/h and for Nicolas 59 km/h for every recorded lap.