His passion for cars nearly caused him a serious injury in 2009 when he crashed and wrecked a Ferrari days before United played Chelsea, but he escaped unhurt.
Ronaldo's Instagram feed is littered with expensive cars:
That car was a Ferrari 599 GTB Fiorano worth £200,000 with a top speed of 205mph.
In 2009, Ronaldo joined Madrid for a then world-record transfer fee of £80million.
And since arriving in Spain, Ronaldo has been treated to a number of Audis due to Real's sponsorship deal with the company.
Each year, the Madrid squad are treated to a new car by the manufacturer and Ronaldo has been seen with an Audi RS5, an Audi R8 and an Audi S8.
But despite the guarantee of a fresh new Audi each year, it has not stopped Ronaldo splashing out millions on other new motors.
His car collection has ramped up to the highest level while entering the lucrative years of his career at one of the world's most prestigious clubs.
He has shared pictures on his Instagram account posing alongside a Mercedes S65 AMG Coupe, a Range Rover Sport SVR, a Ferrari F12, a Porsche 911 Turbo S, a Mclaren mp4-12c and a Mercedes-Benz AMG GLE 63S - all of which cost comfortably over six figures.
He has two of the Mercedes S65 AMG Coupe - one in black and another in white.
Ronaldo also owns a stylish muscle car - a Chevrolet Camaro SS - which costs £35,000.
Yet there are two cars in his collection that easily claim the centre of attention.
The Madrid star owns not one but two Bugattis, which cost an accumulative total of £4.2m.
Ronaldo has a black Bugatti Veron which costs £1.7m and reaches a top speed of 254mph.
But the jewel in the crown of his astonishing collection is a silver Bugatti Chiron which set him back £2.5m and can go a 261mph.
Cristiano Ronaldo's cars, cost and top speed
Porsche Cayenne - £67,500 (NZ$126,000) - 150mph
BMW M6 - £77,500 (NZ$144,000) - 155mph
Porsche Carrera S - £87,335 (NZ$163,000) - 191mph
Bentley GT Speed - £140,000 (NZ$261,000) - 205mph
Ferrari 599 GTB Fiorano - £200,000 (NZ$373,00) - 208mph
Audi RS5 - £61,000 (NZ$114,000) - 155mph
Audi R8 - £107,000 (NZ$200,000) - 185mph
Audi S8 - £82,000 (NZ$153,000) - 155mph
Mercedes S65 AMG Coupe - £180,000 (NZ$336,000) - 155mph
Range Rover Sport SVR - £100,000 (NZ$186,000) - 176mph
Ferrari F12 - £240,000 (NZ$448,000) - 211mph
Porsche 911 Turbo S - £148,000 (NZ$276,000) - 205mph
Mclaren mp4-12c - £168,500 (NZ$314,000) - 207mph
Mercedes-Benz AMG GLE 63S - £105,000 (NZ$196,000)- 155mph
Chevrolet Camaro SS - £35,000 ($NZ65,000) - 165mph
Bugatti Veron - £1.7million ($NZ3.17m) - 254mph
Bugatti Chiron - £2.5m ($NZ4.67m) - 261mph
OVERALL COST: £5,910,500 (NZ$11,036,085)
