Boozing Redneck

With the new update, if you already have down the 10 Pounds of Gold with a wrestler you will have a white title. You don't need this one to work. So you have to go through the 10 Pounds (which you have to do it will all the wrestlers for a achievement) and get the gold belt. Now pick your champion and opponent, and right as you get to pick the arena, you'll get 2 options for, Play it stay or Risk it all. Do Risk it all to put the title on the line. Then pick a arena and win the match. Then you rinse and repeat 9 more times and the achievement is yours.

For this one it's easy. Do a exhibition with the mohawk equipped on any car. Just set up a match on Wasteland and make demolish on contact. Just start the match and demolish 3 AI cars and viola, achievement unlocked.