When does writing on someone’s Aston Martin actually improve the value of the car? When it has been signed by Michael Jordan and a slew of basketball greats. One collector is in possession of such a car, and it might be the most expensive collectible ever.

CNBC has a report on a very special Aston. It is a 2002 Aston Martin Vanquish, fitted with a custom rear wide-body kit, custom paint job, and a plethora of signatures. In 2009, the car was created to commemorate the 50th anniversary of the Basketball Hall of Fame, and was placed in front of the HoF as the inductees and many others passed by to sign it. That includes Michael Jordan, David Robinson, Charles Barkley and others. RELATED: See images of the 2003 Aston Martin Vanquish The car was purchased originally for $200,000, but according to Ken Goldin, founder of Golding Auctions (who is selling the car), its value has increased by over 500 percent. Goldin hopes to fetch big money for the current owner Geoff Abadee, and had the car appraised for a whopping $1.25 million. RELATED: See images of the 2014 Aston Martin Vanquish Volante

Aston Martin Signed by Michael Jordan Valued at $1.25 Million

Livery and signatures aside, the Vanquish is a truly wonderful car. It features a 5.9-liter V12, making 460 horsepower. The Vanquish was the type of car used in the James Bond movie “Die Another Day.” The added pedigree of the hall of famers’ signatures makes this one truly collectible item. So far there have been seven bids on Goldin’s sports memorabilia auction site. The current bid is at $88,579, so to reach record status, the car still has a long way to go. CELEBRITY CAR NEWS: See the latest on celeb cars on BoldRide!