They were a power couple , but Dario Franchitti and Ashley Judd have separated, according to a Judd spokesman.

They may have brought star power, but they were far from the only couple to bear watching at the track. Check out some other IndyCar and Formula wives and girlfriends making regular treks to the track.

IndyCar Series driver Ed Carpenter poses for a photo with his wife Heather Carpenter after qualifying for the Indianapolis 500 at the Indianapolis Motor Speedway in 2012. The pair have two children and have been a fixture on the IndyCar circuit.

The girlfriend of IndyCar racer, dancing man Helio Castroneves, Adriana Henao here attends the Destination Fashion 2012 To Benefit The Buoniconti Fund To Cure Paralysis, the fundraising arm of The Miami Project to Cure Paralysis, on Nov. 10, 2012 at Bal Harbour Shops in Miami, Fla. He won the mirror ball on "Dancing with the Stars" - and looks like he has also swept Henao off her feet.

New Zealand's Scott Dixon, No. 9 Target Chip Ganassi Racing Dallara Honda, parades his wife, Emma, and daughter Poppy at Indianapolis Motor Speedway.

IndyCar series driver James Hinchcliffe walks to pit road with his girlfriend, Kirsten Dee, before the Indy 500 at Indianapolis Motor Speedway. Dee is a former Miss Sydney Australia.

Ryan Hunter-Reay, driver of the No. 28 Team DHL/Sun Drop Citrus Soda Chevy Dallara, joins his wife Beccy Gordon in the Indianapolis 500 parade. Gordon is a former off-road racer, pit-reporter and model.

Brazilian Tony Kanaan, driver of the No. 11 GEICO/Mouser Electronics KVRT Racing Dallara Chevrolet, rides with his fiancee Lauren Bohlander at Indianapolis. Bohlander is a previous host of the “Up to Speed” segment on IndyCar.com

Canadian driver Alex Tagliani rides with his long-time wife, Bronte. She is a model and fitness trainer, helping her keep in shape while traveling the circuit.

Ryan Briscoe's wife, Nicole, is savvy about racing as well. She hosts NASCAR Countdown for Sprint Cup races.

Jenson Button arrives with longtime girlfriend Jessica Michibata at the Hugo by Hugo Boss Autumn/Winter 2012 fashion show during Mercedes-Benz Fashion Week Berlin at Gemaldegalerie in 2012. Michibata often draws as much attention from photographers as Button when attending races.

Lewis Hamilton has been involved in an on-again, off-again relationship with former Pussycat Doll Nicole Scherzinger for some time. Here the pretty pair arrives at the World Premiere of Disney Pixar's 'Cars 2' at the El Capitan Theatre in Hollywood, Calif.

Dasha Kapustina, has been squired around the track by Fernando Alonso in recent months. When not at the track, Kapustina is a Russian model.

Lotus F1 Team's French driver Romain Grosjean is joined by his girlfriend Marion Jolles regularly at the track.

Formula One driver Kimi Raikkonen's wife is a competitor in her own right. Jenni Dahlman of Finland, is seen here attending the the CSI5 Casas Novas 2012 at Centro Hipico Casas Novas on Dec. 15, 2012 in Arteixo near A Coruna, Spain.