The page it comes from looks pretty real to me. It doesn't seem to be a joke news website.

http://rhein-zeitung.de/on/03/04/23/topnews/foto.html

It traslates fairly well with Google:

Originally posted by Google Traslator:
23.04.03 with a spectacular traffic accident in Middle Franconian living/Forchheim, a horse was hurled by the windshield of a vehicle. Four horses had broken out in the Dienmstag evening. A Haflinger was rammed by the passenger car and landed on the passenger seat. The 26 year old drivers remained intact except a shock, the animal was killed. Photo: Klaus Ponner, dpa


Kendall Just another mid-engined troll '93 Toyota MR2 Turbo previously '97 GL Zetec ATX