Try not to go with anything thicker, that can make things more difficult unless you are an accomplished welder with experience welding thicker and thinner metal together, you may end up spending wore time fixing holes than welding metal to metal. As well as these cars are just like all the others the metal parts are part of the crush zones and made to absorb the damage. and not crumple other parts. like said any welding shop will have any gauge metal sheets you need.
Technology is great when it works,
and one big pain in the ass when it doesn't
Detroit iron rules all the rest are just toys.
[This message has been edited by 84fiero123 (edited 05-12-2014).]