1987 Porsche 944 Turbo 951 With Limitied Slip 5 Speed Transmission on 2040-cars

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Jay Leno takes an in-depth look at a 1964 Porsche 356C restomod

Look nearly anywhere at Dr. Anand Rajani's 1964 Porsche 356C, even the engine, and you would never realize that it boasts around 50 percent more power than stock. There's no sign of any other mods to make the drive a bit more modern, either, but they're there. The car's invisible upgrades result in an amazing transformation of a car that started out pretty great to begin with, and Jay Leno can't seem to get enough of driving this beautiful, gray coupe with restorer John Willhoit. Before going for a drive, Leno takes a deep dive into the details of this Porsche's modifications, particularly of its engine. The result of all the work is a mill that looks visually stock but actually boasts a significant jump in displacement. Willhoit admits this is particular one is a fairly conservative build but output still reaches 145 horsepower and 145 pound-feet of torque. If you're worried that Jay's CNBC show might have a detrimental effect on the quality of the Jay Leno's Garage YouTube video series, then here's your answer. For vintage Porsche fans interested in the nuts and bolts of making them even better, it's hard to imagine Leno making a better clip than this one.

Top horsepower-per-dollar cars in 2017

Bang for the buck. That quasi-scientific statistic is bandied about by motor heads everywhere from classrooms to barrooms, though the truth of the matter is that it's exceedingly complex to measure. A fair performance-per-dollar index would include something like cross-referencing MSRP (Manufacturers Suggested Retail Price) with point-to-point times on a track or driving route, which is obviously hard to do comprehensively. But, for the sheer joy of talking about cars and playing with a big spreadsheet, there's always the horsepower-per-dollar index, which is more straightforward, albeit hilariously flawed. There are vagaries even with this simple formula, of course: MSRP for vehicles can change at a moment's notice, to say nothing of the bottom-line shifting that happens with local deals or showroom negotiation. For this list we're running with the straight MSRP wherever possible, and as recently reported as we can get it. All the vehicles on this list are 2017 models, and all trims are reported where the lowest price and differing power levels intersect. Some choices were made for personal preference and some for sanity, avoiding things like all 48 trim levels of the Ford Transit, all with the same horsepower). If this list were a simple top ten, or even a top fifty, you'd be bored to tears with all the red, white and blue that is represented. Following perfectly with conventional wisdom, American cars really do lead the world where hp/$ is concerned. So, for the sake of variety (and the sheer joy of seeing a minivan 'win' one round of this thing) I've sorted out some top five and bottom five lists for broad power categories. Let's dive in. Less Than 100 Horsepower Okay, okay, this is hardly a category we'll grant you. But we've often tried to click off all the sub-100-hp cars on sale in the US, and making this list gave us an excuse. It also illustrates that none of these smallish vehicles bring cheap horsepower to the table - for that you'll need a motorcycle. The segment-leading Chevy Spark (above) asks just over $139 for each hp, and that Smart Fortwo Electric Drive has hp on sale for about the same price as its very distant family cousin, the Mercedes-Benz SL65 AMG (insert your favorite Smart joke here... we know you want to).

Prosecutors in Argentina wants Top Gear to stand trial

Jeremy Clarkson may have left Top Gear behind, but some of his actions on the show may come back to haunt him. Prosecutors in Argentina reopened a criminal case against Clarkson last week, which may result in a prison sentence, over last year's now infamous insulting license plate incident, the Telegraph reported. Top Gear, and Clarkson in particular, had a reputation for going out of their way to insult other cultures. Clarkson was already on notice for racist remarks and social media posts when he punched a producer, ending his career at the BBC. So it was not a huge surprise when the team ran into trouble in Argentina while filming a 1,400-mile road trip for the show's 2014 Christmas special. Now for the history; Argentina and England have a long running disagreement that goes all the way back to the age of empire. At various times, a small set of islands off the coast of Argentina, called the Falklands, have had French, British, Spanish, and Argentine settlements. Britain claimed for their own in 1833. In 1982, Argentina and Britain fought a short, bloody war over the islands. Britain emerged victorious and still holds the islands to this day, though Argentina still claims them. Enter the Top Gear lads and their cars. Clarkson was driving a Porsche 928 with a license plate reading H982 FLK. Producers for the show deny up and down that the plates were not intended to cause such ire. Intentional or no, residents took the plate as a jab at the country's defeat in 1982. First, Clarkson was banned from the city where the road trip was supposed to wrap up. Then, angry Argentines threw stones at the hosts, forcing Top Gear to abandon filming and flee the country. In April, a judge deemed the plates intentionally disrespectful and blamed the show for causing a riot. Now the case is being reopened in Argentine courts, partly at the urging of veterans from the Falklands War. Prosecutors are saying that Top Gear changed the Porsche's plates with full knowledge that such actions were illegal. The case could take years to wind its way through the court system and drag all three Top Gear presenters in front of a judge. At the end, if found guilty, Clarkson could face three years in an Argentine prison.