Reddit mentions of Rothco Commando Wire Saw

Those are called wire saws and are more survival type equipment.

You can buy a couple different types of those on Amazon, good for cutting trees for firewood while camping. Or chopping up bodies. w/e

http://www.amazon.com/Rothco-Commando-Wire-Saw/dp/B000WDPGW2/ref=sr_1_2?s=sporting-goods&ie=UTF8&qid=1330907582&sr=1-2

http://www.amazon.com/Chainmate-CM-24SSP-24-Inch-Survival-Pocket/dp/B0026OOS60/ref=pd_sim_sg_1

https://www.amazon.com/Rothco-8312-Commando-Wire-Saw/dp/B000WDPGW2

• So if there were enough clearance (and maybe add some masking tape to avoid scratching edge of hood), then feed a wire-saw around each clip and saw it off.
  
  
• Another crazy idea would be if you can see the clips, get a long hose with some freeze spray and blast the plastic...this will make it so brittle it will shatter.
  
  
• Note that the grill is held by tabs that hook under the edge of the bumper cover. So if you can put enough downward force on the bumper cover to free the bottom (may want to put some masking tape there to avoid scatching), maybe you can coax one or two of the clips to shatter and/or work loose? Since there are only four, if you can knock two out from below, then the other two may go easily.
  
  

Fairly easy. There's a reason these are called what they are.

https://www.amazon.com/Rothco-8312-Commando-Wire-Saw/dp/B000WDPGW2