According to a listing from Becker Automotive Design, anyone can “own a piece of the Brady legacy” by purchasing the car.
The company specifies that the company is asking for $300,000 (£242,000) for the vehicle which has only 13,000 miles on the clock.
The features that the Cadillac boasts include electric reclining VIP seats with leg rests, both a 32-inch HD LCD screen TV and a rear 12-inch screen, and a savant controlled AV system.
“Parting ways with my Becker ESV won’t be easy. From day one it became my sanctuary from the outside noise,” Mr Brady told Becker Automotive Design.
“With such limited time in my busy schedule the ESV gave me those extra minutes to study my play book, make phone calls and be with my family.”
The quarterback also emphasised how carefully each of the vehicle's custom features had been selected and personalised.
“I took pride in picking out all the customizations of the ESV; from the trim of the seats to the color of the rug," he said.
The car was worth $350,000 when purchased new, according to the website.
The 42-year-old also said that while he hopes the vehicle will be sold on to a good home, the car will always hold a certain place in his heart.
“I hope the next owner will take great care of her; she will always be a part of the Brady family,” he added.