Bentley's ultra high net worth clientele likely didn't achieve their status in life by wasting time, and the U.K.-based luxury automaker appreciates the finest of details.

"For our clients, time is money -- and stopping to buy gas is one of their biggest nuisances," explained Bentley Motors Director of Product Management Paul Jones in an interview with TheStreet. To solve this minor annoyance Bentley inked a partnership with Filld in October, an upstart fuel delivery service that's being dubbed by some as the Uber of gasoline.

Using a special app, a Bentley owner highlights the location of their pricey ride and then selects a time period to have the car's gas tank filled. Filld, which operates its own truck fleet (often a pickup truck with special tanks in the bed), arrives to the car, pops open the Bentley gas tank door via a tablet, and fills the car up with petrol. Filld charges the customer the lowest per gallon price from the three closest gas stations to where the car is parked. The service also includes a delivery charge ranging from $3 to $5, depending on timing and location of the fill-up.

But hey, what's a couple extra bucks to fill up the tank to a Bentley owner trying to save precious time. "Our owners aren't necessarily concerned with how much gas costs," Jones says. 

The service is currently available in the prime markets for Bentley of San Francisco and Silicon Valley. More recently, Filld began testing in the Bay Area via a new partnership with Volvo for its S90 and XC90 models. The upstart isn't alone in the emerging fuel delivery space. Names such as WeFuel, Yoshi, Purple and Booster Fuels have started doing business in cities such San Francisco, Los Angeles, Palo Alto, Nashville and Atlanta.

TheStreet sure could have used Filld while reviewing the stunning new Bentley Mulsanne Speed.

I would have loved to try Filld if it was available on Long Island, New York

From the extra-plush couch-like Bentley embroidered front and rear seats to the endless shiny chrome accents throughout to the two large umbrellas in the trunk that are great to have should a rainstorm break, the latest from Bentley makes everything else on the road feel inferior. If Bentley wanted to remind people-- from car review snobs to its ultra-rich clientele -- that it still produces mostly handcrafted autos, then the 2017 Mulsanne Speed certainly delivered. 

That Bentley model is priced at over $400,000 with all the bells and whistles, such as the 10.4-inch removable touchscreen Android-powered tablet and backseat champagne chiller (with three crystal flutes included, of course). The luxury super car boasts an extra-quiet 6.75 litre V8 engine that pumps out a heart-pounding 530 horsepower with ease. That impressive power-plant rockets the Mulsanne Speed from 0 to 60 mph in about 4.8 seconds. Top speed for this beast of a four-door 6,200-pound luxury auto: an eye-watering 190 mph, not too far removed from the new two-door Ferrari GTCLusso that reportedly tops out at 208 mph.