Four-time Formula 1 world champion Sebastian Vettel has said that drivers no longer get "scared" by competing in the sport.
The FIA, the governing body of F1, recently unveiled a series of rule changes to come in from 2017 to make the cars up to six seconds faster per lap.
The Ferrari driver told BBC Sport: "The first time I drove an F1 car I was scared and I don't think you get that anymore. I would like to have a much bigger engine, more power, better tyres, more grip so the cars go faster."
The sixth race of the 2015 season, the Monaco Grand Prix, takes place this weekend.
