What is this 3 x 8 orange curved piece from? My dad recently gave me a large box of LEGO pieces that belong to sets. I found two pieces that appear to be the front of a car. I was wondering if you guys could help me out. I would love to know what it came from so I could maybe put it back together.
Those pieces have only been in the following 2 sets:

3830-1 - The Bikini Bottom Express



7706-1 - Mobile Defense Tank