Sharing a piece of my childhood. This is M.A.S.K - Mobile Armor Strike Kommand. A very popular series back in the 1980s. I like their vehicles, because it's a 2 in 1 toy. 1 toy with 2 transformations. Check out the transformations below. 

M.A.S.K RazorBack in Ford T-Bird Stock Car mode - vehicle mode

M.A.S.K RazorBack in Rescue Tank Mode - Combat Mode. It's armed with Prism missile @ the front engine intake area, plus sand blasting cannons and metal cutting lasers. 

Even though they are toys, but the transformation is quite realistic. Plus some of the weapon mechanisms are functioning as well, such as the prism missile which can launch out. nice... haha..  

More information about M.A.S.K can be found @ this M.A.S.K site created by Albert Penello.