The Mobil 1 Twelve 12 Hours of Sebring is the ultimate test of man and machine – a true torture test with large bumps, blind turns, traffic and for tomorrow’s race – potentially rain as well.

Michelin Alley spoke with five drivers from BMW, Corvette, Ferrari, Ford and Porsche on Twitter today to find out about the challenges that lay ahead in round two of the IMSA WeatherTech SportsCar Championship.

Find out what @risicomp #Sebring12 rookie @rigondavide thinks of the @sebringraceway bumps. @FerrariRaces @IMSAhttps://t.co/xLLwD2Uw06

— Michelin Alley (@MichelinAlley) March 18, 2016

.@DISupdates & @sebringraceway races run into the night. @PorscheNAracing‘s @kevinestre explains which is darker?https://t.co/GAh5xi6eSW

— Michelin Alley (@MichelinAlley) March 18, 2016

How big a challenge is the fast and bumpy last & first corners at #Sebring12? We ask @BMWUSAracing‘s @kunowittmerhttps://t.co/eD3CcPJADL

— Michelin Alley (@MichelinAlley) March 18, 2016

We asked @CorvetteRacing‘s @olivergavin “what are you looking at?”
The joys of traffic at the #Sebring12 @IMSAhttps://t.co/qxGIh1A3jH

— Michelin Alley (@MichelinAlley) March 18, 2016

.@JoeyHandRacing is used to @sebringraceway bumps but his @FordPerformance GT has its first race on them tomorrow.https://t.co/JwbHOxIqEQ

— Michelin Alley (@MichelinAlley) March 18, 2016