Aw, c'mon ya limeys, ya know...
...that us Yanks will clone a mammoth first. Because "Bigger is better and biggest is best" is the American way, whether we're talking about bombs, cars, or tits*.
If you Brits cloned mammoths, chavs would film themselves happy slapping them, the McCann's would say that they'd seen one leaving the Pria del Luz with a blond child held in its trunk, and your chefs would ignore all that tasty meat and find some disgusting dish to make with the spleen, probably with onions.
Us Americans will breed them even bigger, figure out how to mount twin 50 cals and a beer cooler on them, and use them to invade Canada. We'll also be grilling the biggest T-bones you've ever seen.
* Unfortunately, this trend also seems to be affecting the asses of Americans lately as well, much to our chagrin and the delight of diet pill and book manufacturers.