Dario Franchitti has set aside questions about whether he might quit the sport after Dan Wheldon's death, and instead is focussing on developing the new 2012 car.
"I watched Marco's funeral yesterday and I really wish I could have been there... Valentino spoke to Marco's family on my behalf and I thank him for that" - Colin Edwards.
"Marco Simoncelli was a passionate rider bubbling over with a challenging spirit and blessed with a cheerful personality" - Takanobu Ito, President and CEO of Honda.
Moto2 star Marc Marquez, who underwent some checks at the USP Institut Universitari Dexeus upon his return from Malaysia, will need to rest for the next few days.
Will Power, one of the drivers sent to hospital after the crash at Las Vegas that claimed the life of Dan Wheldon, had been diagnosed with a compression fracture to his back.
"I feel sad for the whole MotoGP community right now, my heart is heavy for everyone affected, from family to fans. God speed my friend, u will be missed" - Colin Edwards.
IndyCar staged a public memorial service to celebrate the life and times of Dan Wheldon on Sunday, which included contributions from Dario Franchitti, Tony Kanaan and Bryan Herta.
Clint Bowyer won a last lap shoot out with his Richard Childress Racing team mate Jeff Burton at Talladega, in a race that proved costly for a number of Chase contenders.