The Engine and The Patriot

The Engine is needed to build a "Limited Time" Vehicle that popped up in the Chop Shop -- all the way on the left end (the suggestion above to "be on the lookout" makes sense since you usually see new Chop Shop items at the RIGHT end of the row...)


It's called the Patriot and you'll want as many of them as you can get while they're around. With its 53A/68D stats, it is one of the few collectible Vehicles that beats the Foo Fighter on Defense. And you get two Defense stat points for each one you build.