Given the current "honey, I shrunk the gas tank" trend in compacts and subcompacts (even FHI is not immune) I've got to ask: which of the current crops of passenger cars (and jeeps) allow seamless aftermarket larger gas tank drop-in aka bolt-on?
And to make your life even more difficult: which of aftermarket tanks are any good material grade wise. Given that the market is prolly miniscule I had to ask that one also :^)
discalimer: I don't work in auto industry and don't own any of the related stock :)