1997 Jaguar Xk Xk8 Convertable 4.0l on 2040-cars

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Porsche 911 Turbo and Nissan GT-R Nismo star in World's Greatest Drag Race 4

We love Motor Trend's annual World's Greatest Drag Race video. Now back for its fourth appearance, the idea of lining some of the world's fastest cars up for a ten-wide, straight-line, full-throttle run is, well... it's pretty freaking badass.
The lineup this year boasts some impressively fast cars to be sure. The group of ten includes the following darlings: Alfa Romeo 4C, BMW i8, BMW M4, Chevrolet Camaro Z/28, Ford Fiesta ST, Jaguar F-Type R Coupe, Nissan GT-R Nismo, Porsche 911 Turbo S, Subaru WRX STI and, last but not least, the Volkswagen GTI. Give us any one of those for the weekend, and we're happy to take the keys.
It must be said though, that for a publication that draws as much water as Motor Trend does, there are some big cars that we might expect to be here instead. The Lamborghini Huracán or Ferrari 458 Speciale would have added some exotic flare to the list, and the omissions of the Chevy Corvette Stingray (for the second year in a row) and the Dodge Challenger Hellcat are real head-scratchers.

Jaguar I-Pace makes transition to production with hardly any changes

It looks like Jaguar designer Ian Callum wasn't kidding when he said the I-Pace concept was "a preview of a five-seat production car that will be on the road in 2018." Based on these spy photos, the production I-Pace will look darn near identical to the concept. The prototype seen above, in a unique and rather groovy green camouflage wrap, retains the swoopy cab-forward design of its concept predecessor. The headlights have the same shape and still sweep back nearly to the front wheel wells, and the door handles are still flush mounted ovals placed low on the doors. At the back, the crisp crease marking the trailing edge of the hatch is intact, as well as the triangular points on the rear spoiler. There have been a few minor changes here and there. At the front, the grille doesn't have quite as much depth as the concept, and the base of the front bumper doesn't have as aggressive an air dam. The big heat extractor vent in the hood is also gone. The rear bumper has also been rounded off a bit more with a simpler rear diffuser. The side glass is in production form, so now there are seams that show where the glass rolls down. It appears the rear doors will have quite a small glass opening, as the seam is roughly at the half-way point of the window. If the mechanicals of the concept end up as unchanged as this prototype's exterior, expect the production I-Pace to have a pair of electric motors that will produce 400 horsepower and 516 lb-ft of torque. Jaguar estimates these will propel the car to 60 mph in about 4 seconds. The motors will be supplied with power from a 90 kWh lithium-ion battery, which Jaguar says will provide a range of 220 miles. With a target date of 2018, we would expect to see the production model revealed at the end of 2017 or early in 2018. Related Video:

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).