Kendra Wilkinson All Smiles After Car Crash -- I'm Lucky to Be Alive

Kendra Wilkinson was in surprisingly good spirits today in L.A. ... smiling and laughing just days after she totaled her car in a nasty car accident.

As we reported, Kendra was hospitalized following the accident over the weekend -- when her tricked-out Audi collided head-on with another vehicle.

Kendra was bruised and battered after the accident, but thankfully, doctors didn't find any broken bones.

Now she's back on her feet -- venturing outside with her husband Hank Baskett -- and told us, the whole nightmare actually has a silver lining ... watch the video to find out.