A group of 12 car-obsessed celebrities set out to answer the question by curating a special automotive exhibition that promises to be packed with some of the finest and fastest vehicles ever conceived.

Scheduled to open its doors to the public on April 10 at the Petersen Automotive Museum on Wilshire Boulevard, Los Angeles, the special exhibit promises an eclectic collection of classic automobiles.

Hand-picked by a group of 12 celebrity curators including Pink Floyd drummer Nick Mason, film director Francis Ford Coppola, actor and race car driver Patrick Dempsey and AC/DC's Brian Johnson, the exact models that will make up the final collection are being kept a closely guarded secret until a special preview event on April 9.

However, what is certain is that the show will feature landmark models from the U.K., U.S., Japan, Italy and Germany and, judging by the celebrities behind the show, there will be no shortage of Porsches, Jaguars, Bentleys and Ferraris on show.

Other members of the elite cadre of celebrity curators for the event include Metallica's James Hetfield; Tanner Foust, Adam Ferrara and Rutledge Wood, the hosts of "Top Gear USA"; "Toy Story" director John Lasseter; and Jaguar's director of design, Ian Callum.

"With a location at the hub of car culture in Southern California and with partnerships from major automotive brands, the Petersen offers opportunities to bring together unique automotive collections and delivers a meeting place for aficionados from around the world," said Petersen Executive Director, Terry Karges. "Our goal is to present an exciting exhibit unlike anything ever done in an automotive museum."

The special show, a celebration of the best hard-top, two-seater performance cars ever conceived, is being co-hosted by Jaguar to coincide with the U.S. launch of its latest sports coupé, the F-Type, and follows on from an earlier collaboration with the museum that saw Steve McQueen's Jaguar XKSS exhibited at the LA Motor Show on Jaguar's stand.

"Every automotive enthusiast has their list of all-time favorite cars, and for many that list is dominated by high performance sports coupes like the Jaguar E-Type," said Jeff Curry, Brand Vice President, Jaguar. "To mark the arrival of the all-new F-Type Coupe, we are very pleased to help the Petersen present this expertly curated collection of coupes answering the question, ‘what is the greatest sports coupe of all time?' and we hope to challenge every enthusiast to answer the question themselves."