1930 Ford Model A Body Rat Rod / Hot Rod on 2040-cars

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American automakers fall in latest Fortune 500 rankings

Not that it means anything beyond bragging rights, but if you're fixated on the positions of domestic automakers on the annual Fortune 500 list, both General Motors and Ford are still on it but they've slipped a couple of notches. The list ranks American companies and they're ordered solely by revenue. GM, fifth last year, came in seventh, while Ford fell from ninth to tenth even though both companies saw small gains in annual revenue.
GM's $152.3 billion in revenue was less than a third of that of the first company on the list: Wal-Mart, which regained the title from Exxon Mobil. Berkshire Hathaway and Apple are the firms that moved GM down. Ford, displaced by energy company Valero, had $134.3 billion in revenue.
On a side note, profitability isn't a factor, but both GM and Ford were down in this year's list compared to last year's: GM declined from $9.2 billion to $6.2 billion, Ford fell from $20.2 billion to $5.6 billion. If profits were included, Exxon Mobil would probably still be king: although the energy company made almost $20 billion less in revenue than Wal-Mart's $469.2 billion, it posted $44.9 billion in profit compared to Wal-Mart's $17 billion.

Which is more fuel efficient, driving with a pickup's tailgate up or down?

Thanks to the smoke wand in the wind tunnel, you can actually see the difference in our video.
Should you drive with your pickup truck's tailgate up or down? It's an age-old controversy that's divided drivers for decades. Traditionalists will swear you should leave the tailgate down. Makes sense, right? It would seem to let the air flow more cleanly over the body and through the bed. But there's also a school of thought that argues trucks are designed to look and operate in a specific manner, and modern design techniques can help channel the airflow properly. So don't mess with all of that: Leave the tailgate up.

1947 Chevy rat rod pickup leaves rubber and smoke in its wake

Cool comes in multiple flavors. One one hand, we have the sophisticated attraction of svelte design and the efficient use of power. Of course, on the other hand there is the allure of being the bad boy and going against the grain. That is part of the appeal of rat rods. Ideally, they are built without rules to an owner's specific tastes, and this widened and heavily modified 1947 Chevrolet pickup rod is a perfect example of that spirit.
Coming down the highway with a bent grille, rusted body and pouring smoke, it looks like the pickup from hell. It backs up the looks with some very impressive mechanicals too. Owner Troy Gubser says that the truck packs a Ford Power Stroke diesel with to 42 pounds of boost that runs out of 8-inch exhaust stacks at the back. He claims it managed 505 horsepower and 885 pound-feet of torque on the dyno. To harness all that power, this hot rod has a ZF five-speed manual gearbox with a ceramic clutch and short-throw shifter. Plus, it has cool little features like a doorbell on the tailgate that operates an air horn.
You might not expect a truck like this to actually be useful, but it has a fifth wheel coupling to haul an RV around drag races and car shows. The air suspension also probably keeps the ride fairly comfy when Gubser wants it to be. Scroll down to check out this beastly rat rod pickup and watch it engage in some diesel drag racing. Warning, there is some NSFW language.