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A diesel V8 is the perfect engine for the Bentley Bentayga

Endless, effortless torque is something that's so often taken for granted. Sure, horsepower figures make all the headlines, but the sensation that comes with immediate and readily available thrust is something that can't be overstated, especially in luxury vehicles. High-strung, high-horsepower engines are great in certain applications, but Bentley owners don't want to work for the power, they just expect it to be there. That's why the 4.0-liter diesel V8 from the Audi SQ7 and its 664 lb-ft of torque make perfect sense for the new Bentley Bentayga. We've known for a while that Bentley is planning a diesel variant of the Bentayga, but it wasn't clear from where the engine was being sourced. According to Telegraaf in Holland, Bentley is pulling the diesel from the heart of its sibling Audi, and it won't be an effort to improve fuel efficiency. The all engine features two exhaust-driven turbos plus a 48-volt compressor that effectively cuts lag to nothing and propels the SQ7 TDI to 62 mph in 4.8 seconds. Expect a similar number in the Bentley. This engine is exactly what the Bentayga needs. There is nothing wrong with the W12 in the standard model, and you could argue a 12-cylinder engine is a better fit in a Bentley. But that's just because W12 sounds better than diesel. While the gasoline engine may more powerful and therefore make the vehicle quicker (leading to that " fastest SUV" claim Bentley loves), no owner will actually be racing their Bentayga to its theoretical top speed of 187 mph. They will be racing away from stoplights, though, in an effort to leave more plebeian cars and SUVs behind. All that low-end grunt is what those owners really want. It's unclear if Bentley will bring the Bentayga diesel to the United States, and given the current state of diesel here, the proposition seems unlikely. Expect an official debut at the Paris motor show in October. Related Video: News Source: Telegraaf Rumormill Bentley SUV Diesel Vehicles Luxury bentley bentayga audi sq7

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).

Bentley GT3-R is the most hardcore road-going Continental yet

A factory-entered Bentley hadn't won a top tier race in the UK for 84 years when the Continental GT3 recently took victory in the second round of the Blancpain Endurance Series at Silverstone. It was an early success for a racer that only hit the track competitively for the first time late last year at the Gulf 12 Hours in Abu Dhabi. To capitalize on the potent platform, Bentley is bringing it to the street with the limited-edition Continental GT3-R.
Limited to just 300 units worldwide, this bruiser starts as any other Continental GT on the assembly line in Crewe, England, but then Bentley Motorsport get ahold of it to painstakingly improve its performance. Like the racer, GT3-R uses the 4.0-liter, twin-turbo V8, and here, power is cranked up to 572 horsepower and 516 pound-feet of torque, 51 hp and 14 lb-ft better than the GT V8 S. The muscle is routed through an eight-speed automatic gearbox from ZF with shortened gearing and a rear-biased all-wheel-drive system with torque vectoring for the rear wheels. The weight also comes down over 200 pounds from the V8 S to 4,839 pounds. Bentley claims all the tweaks are enough to hustle the GT3-R to 60 miles per hour in 3.6 seconds, on to an estimated top speed of 170 mph.
To handle all that power, an air suspension holds up all four corners, and the brakes use carbon silicon carbide discs for plentiful stopping power. A titanium exhaust saves an additional 15 pounds of weight, and Bentley promises that it gives the car a baritone growl.