The autobun.

Apparently, there is no speed limit on the couch.
Simon has unwittingly volunteered for the role of River's catcher and hugger.  I think this is the moment when River realized that she wasn't going to be able to stop in time.  Bunnies may be able to turn on a dime, but they certainly can't stop on one!

River has found a safer vantage point to watch Simon approach mach1.

It looks like Simon is warping space-time as he reaches maximum velocity (if the weird ripples along his body are anything to go by).  I half expected to see a ring of a sonic boom around his mid-section.
Well, on that note, thanks for visiting and we hope you have a great weekend.  We'll be back on Monday!