German Ferrari driver Michael Schumacher reacts after winning the Formula One Chinese Grand Prix at the Shanghai International Circuit in Shanghai, China, Sunday, Oct. 1, 2006. (AP Photo/Shizuo Kambayashi)

Mercedes Grand Prix driver Michael Schumacher, of Germany, laughs at the Interlagos race track in Sao Paulo, Brazil, Thursday, Nov. 22, 2012. Brazil's Formula One Grand Prix will take place Sunday. (AP Photo/Victor Caivano)

FILE - In this July 21, 2002 file photo German Ferrari driver Michael Schumacher shows his emotion after he won the French Grand Prix at Magny Cours central France and becoming Formula one world champion for the fifth time. Seven-time world champion Michael Schumacher confirmed Thursday Oct. 4, 2012 that he will retire for good at the end of current Formula One season. (AP PHOTO/Christian Lutz, File)

Bildnummer: 06171830 Datum: 16.07.1992 Copyright: imago/Sepp Spiegl Michael Schumacher (Deutschland / Benetton Ford) - Pressekonferenz anlasslich der Hockenheim Tests; Vneg, Vsw, hoch, Pressekonferenz, Pressetermin Testfahrt 1992, Formel 1 WM, F1, F, Test Hockenheim Hockenheimring Motorsport Herren Einzel Portrat pessimistisch Randmotiv Personen Image number 06171830 date 16 07 1992 Copyright imago Sepp Spiegl Michael Schumacher Germany Benetton Ford Press conference during the Hockenheim Tests Vneg Vsw vertical Press conference Press call Test drive 1992 Formula 1 World Cup F1 F trial Hockenheim Hockenheim Ring motor aviation men Singles Portrait pessimistic Rand motive Human Beings

Ferrari drivers Rubens Barrichello of Brazil, left, and Michael Schumacher of Germany sit on an F1 racer on the occasion of the unveiling of a new Ferrari shop in downtown Milan, Italy, Thursday, Sept. 1, 2005. (AP Photo/Luca Bruno)

German Formula One driver Michael Schumacher gestures at the end of the Brazil's F-1 GP on November 25, 2012 at the Interlagos racetrack in Sao Paulo, Brazil. AFP PHOTO/YASUYOSHI CHIBA

Red Bull driver Sebastian Vettel of Germany celebrates as Mercedes Grand Prix driver Michael Schumacher of Germany walks away from his car after the Formula One Brazilian Grand Prix at the Interlagos race track in Sao Paulo, Brazil, Sunday, Nov. 25, 2012. Vettel overcame a first-lap crash to clinch his third straight Formula One championship title on Sunday, finishing sixth in an incident-filled Brazilian Grand Prix won by Jenson Button under pouring rain. (AP Photo/Ricardo Mazalan)

TOPSHOTS German Formula 1 driver Michael Schumacher leans between two tires on November 22, 2012 at the Interlagos racetrack in Sao Paulo, Brazil. Brazil's Grand Prix will take place on November 25. AFP PHOTO/ORLANDO KISSNER

Red Bull driver Sebastian Vettel of Germany, right, and Mercedes Grand Prix driver Michael Schumacher of Germany walk on the track during the drivers parade prior to the start of the Emirates Formula One Grand Prix, at the Yas Marina racetrack, in Abu Dhabi, United Arab Emirates, Sunday, Nov. 4, 2012. (AP Photo/Luca Bruno)

Mercedes driver Michael Schumacher of Germany rides around the Buddh International Circuit ahead of the Indian Formula One Grand Prix in Noida, on the outskirts of New Delhi, India, Thursday, Oct. 25, 2012. (AP Photo/Manish Swarup)

Formula 1 champion Michael Schumacher attends an Audemars Piguet (luxury watches) promotional dinner in Berlin, GERMANY - 17.10.2012.

Mercedes driver Michael Schumacher of Germany waves to the crowd during the drivers parade prior to the start of the Japanese Formula One Grand Prix at the Suzuka Circuit in Suzuka, Japan, Sunday, Oct. 7, 2012. (AP Photo/Greg Baker)

Mercedes driver Michael Schumacher of Germany rides a scooter down the F1 paddock after the qualifying session for the Japanese Formula One Grand Prix at the Suzuka Circuit in Suzuka, Japan, Saturday, Oct. 6, 2012. (AP Photo/Mark Baker)

Champion Michael Schumacher (Mercedes GP) at the Formula 1 World Championship in Monza at the Autodromo di Monza in Italy, 09.09.2012. Credit: Mandoga Media/face to face fot. Face to Face/Reporter

Bildnummer: 10848028 Datum: 24.06.2012 Copyright: imago/Thomas Melzer formula 1 GP, Europa in Valencia, 24.06.2012, Michael Schumacher, Mercedes Grand Prix, Photo:mspb/Jerry Andre formula 1 GP, Europa, Michael Schumacher, ; Motorsport Formel 1 F1 F WM GP Europa Valencia xmk x0x 2012 quer Aufmacher premiumd Formel 1 formula 1 Racing Michael Schumacher Mercedes Grand Prix Motorsport Image number 10848028 date 24 06 2012 Copyright imago Thomas Melzer Formula 1 GP Europe in Valencia 24 06 2012 Michael Schumacher Mercedes Grand Prix Photo Jerry Andre Formula 1 GP Europe Michael Schumacher motor aviation Formula 1 F1 F World Cup GP Europe Valencia xmk x0x 2012 horizontal Highlight premiumd Formula 1 Formula 1 Racing Michael Schumacher Mercedes Grand Prix motor aviation

Bildnummer: 10655951 Datum: 26.05.2012 Copyright: imago/Thomas Melzer formula 1 GP, Monaco 26.05.2012, Michael Schumacher, Mercedes Grand Prix, Photo:mspb/ Lukas Gorys formula 1 GP, Monaco, Michael Schumacher, ; Motorsport Formel 1 F1 F WM GP Monaco Monte Carlo Qualifying x0x xub 2012 hoch premiumd Formel 1 formula 1 Racing Michael Schumacher Mercedes Grand Prix Motorsport Image number 10655951 date 26 05 2012 Copyright imago Thomas Melzer Formula 1 GP Monaco 26 05 2012 Michael Schumacher Mercedes Grand Prix Photo Lukas Gorys Formula 1 GP Monaco Michael Schumacher motor aviation Formula 1 F1 F World Cup GP Monaco Monte Carlo Qualifying x0x xub 2012 vertical premiumd Formula 1 Formula 1 Racing Michael Schumacher Mercedes Grand Prix motor aviation

F1 Testing in Mugello Italy from 1-2 May 2012 with Mercedes GP Pilot Michael Schumacher. Mugello, 01.05.2012. Credit: Mandoga Media/face to face fot. Face to Face/Reporter

Mercedes Formula One driver Michael Schumacher of Germany walks down the F1 paddock as he arrives at the circuit for the Chinese Formula One Grand Prix in Shanghai, China, Sunday, April 15, 2012. (AP Photo/Andy Wong)

Mercedes Formula One driver Michael Schumacher of Germany walks into the F1 paddock as a Chinese flag flies behind him at the Chinese Formula One Grand Prix in Shanghai, China, Thursday, April 12, 2012. (AP Photo/Eugene Hoshiko)

Bildnummer: 10235024 Datum: 25.03.2012 Copyright: imago/Sven Simon Michael SCHUMACHER (GER),Mercedes GP Petronas,Aktion,Einzelbild,angeschnittenes Einzelmotiv,Halbfigur,halbe Figur,total Enttaeuschung,Frust,enttaeuscht,frustriert,niedergeschlagen, nach Ende des Rennens. Motorsport:Formel 1, GP von Malaysia auf dem Sepang Circuit,Kuala Lumpur,Rennen,Race,Saison2012, ; Motorsport Formel 1 F1 F WM GP Malaysia Kuala Lumpur Sepang x0x xub 2012 hoch premiumd Sports Motorsport Motor Formel 1 Formula One WM Weltmeisterschaft World Championship aktuellSport Image number 10235024 date 25 03 2012 Copyright imago Sven Simon Michael Schumacher ger Mercedes GP Petronas Action shot Single Single subject Halbe Figure Total Disappointment Frustration DISAPPOINTED frustrated depressed After End the Race motor aviation Formula 1 GP from Malaysia on the Sepang Circuit Kuala Lumpur Race Race motor aviation Formula 1 F1 F World Cup GP Malaysia Kuala Lumpur Sepang x0x xub 2012 vertical premiumd Sports motor aviation Engine Formula 1 Formula One World Cup World Cup World Championship