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Fernando Alonso sputters in his Indy test

INDIANAPOLIS — Helio Castroneves and Fernando Alonso kept waiting around Wednesday. Now both international stars have some unfinished business to take care before qualifying for this year's Indianapolis 500. After enduring a rain delay of more than four hours then watching IndyCar regulars turn laps at Indianapolis Motor Speedway for two more hours, Castroneves and Alonso finally made it onto the track — but couldn't quite complete their refresher course. "Happy to be back here because this place is great," Alonso said after posting a fast lap of 218.690 mph — the slowest of the nine-driver evening session. "We were slow because the weather and some of the decisions people made on running time and things like that." He faced a bevy of problems in his first trip back to Indy since an impressive rookie performance in 2017. The rain delay forced organizers into rescheduling the one-day test, moving the rookie and refresher driver time from midday to the evening, cutting a significant amount of practice time for Alonso and the others. And when the green flag finally waved, Alonso's No. 66 car stalled in the warmup lane forcing the two-time Formula One champion from Spain to be towed back to pit lane where his crew worked feverishly to fix an electrical problem while sat in the cockpit. Eventually, he did get out and passed the first of two refresher phases. He'll have to wait until opening practice of the 500 on May 14 to pass the second. "It was frustrating for everyone because it was a brand new chassis and a brand new car, so we expected to run a lot," said Alonso, who drives for McLaren Racing. "If we could have had this at midday, you could work on your issues in the afternoon and then go out again." To put his day in perspective, Takuma Sato, the 2017 Indy winner from Japan, posted the fastest lap of the day at 226.993 mph and Colton Herta was the fastest rookie at 226.108. Castroneves, as usual, was good right from the start and posted a fast lap of 225.565. The three-time Indianapolis 500 winner looked smooth and fast on his favorite track and wasted no time passing the first phase. That much should have been expected from the popular Brazilian, who has recorded seven top-three finishes in 18 Indy starts and will make his season debut May 11 in the IndyCar Grand Prix. The weather and yellow flags prevented four of the five veterans — Castroneves, Alonso, Oriol Servia and JR Hildebrand — from passing phase two. Only Indy native Conor Daly made it.

How easy is it to rebuild a Chevy small block V8?

Chevrolet's famous small block V8 stands as one of the workhorse engines in American auto history, with its variants going into vehicles from hot rods to pickup trucks. But do you know that you can fully disassemble and completely restore one of these mills in just under four minutes? Well, as long as there's some assistance from time-lapse photography, that is. Hagerty created this short clip showing a dirt-covered small block turning from a frog into a prince. Thankfully, the time-lapse doesn't speed the process up too much, and it's still easy to see how all of the principal parts fit together. With all sorts of sensors and software helping to drive the modern automobile, viewing the internal combustion engine in its purely mechanical form is still fascinating. Related Video:

2020 Ford Explorer vs 3-row crossover rivals: How they compare on paper

The 2020 Ford Explorer has finally landed, and if history serves as an indicator, it should be bigger than sliced bread. And people sure love themselves some sliced bread. This new Explorer may look familiar on the outside, but beneath the skin is a radically new rear-drive platform related to the Ford Mustang (as opposed to a front-drive platform related to the Ford Taurus and a Volvo from the 1990s). Turbocharged four- and six-cylinder engines now exclusively rest under its hood, which as you'll see below, both better anything its competitors offer. Ah, but if you're curious to know how the new 2020 Explorer compares to its various three-row family crossover rivals, take a look at the chart below where we stack it up against the 2019 Chevrolet Traverse, 2019 Honda Pilot, 2020 Hyundai Palisade, 2019 Subaru Ascent and 2019 Toyota Highlander. There are others of course (Mazda CX-9, Dodge Durango, GMC Acadia, VW Atlas), but we only had so much room on the chart, and these were the newest and/or most likely to be cross-shopped with the new Explorer. Engine specs and towing Although the Traverse's V6 just nips it on horsepower, the 2020 Explorer's base 2.3-liter "EcoBoost" turbocharged four-cylinder engine smokes it on torque. Therefore, "best-in-class" power seems like a fair claim from Ford. That there's also a 365-horsepower turbo V6 available, plus a hybrid and even-more powerful ST model on the way shows that Ford isn't kidding around under the hood. Curb weight also seems competitive for the segment. In terms of drivetrain, the Explorer is the only member of this particular group to come standard with rear-wheel drive (2.3-liter only). The Durango is the only other three-row, non-luxury crossover to do so. This is significant for two reasons: First, you could potentially do a power slide in an Explorer. Second, and more important, those in the Snowbelt will have to opt for all-wheel drive (it comes standard with the 3.0-liter). By contrast, a set of winter tires will probably do the job just fine if you want to save some money and gas by sticking with its rivals' standard front-wheel drive. Well, except for the Subaru Ascent — that's standard with AWD. In terms of towing, the Explorer takes the cake with as much as 5,300 pounds for the four-cylinder and 5,600 pounds for the V6. Everything else tops out at 5,000, though again, the Durango is capable of besting them all thanks to its Hemi V8 engine option.