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Here's how Cadillac made its Magnetic Ride Control suspension quicker and smarter

Bugatti makes the world's fastest car, but Cadillac claims it has developed the world's fastest suspension. Its fourth-generation Magnetic Ride Control technology receives hardware and software tweaks to deliver a more comfortable ride and sharper handling. It's offered on some variants of the CT4, CT5 and the Escalade. Introduced in 2002 on the Seville STS, this self-adjusting suspension is not as complicated as it might sound. It relies primarily on electromagnets that emit a magnetic field, and a magnetorheological fluid whose viscosity changes depending on the strength of the magnetic force. Sensors scan the road up to 1,000 times per second and send the information they gather to the electromagnets, which then alter their magnetic field as needed to modify the fluid's viscosity. The fluid is in the shocks, so making it thicker returns a firmer ride, and vice versa. In simpler terms, Magnetic Ride Control leverages chemistry and physics to make the ride sporty, comfortable, or somewhere in between -- all in the blink of an eye. By reacting to the changing magnetic field, the fluid-filled shocks filter out road imperfections and maximize tire contact with the road to deliver more precise handling. Cadillac began developing the fourth-generation system by improving the hardware. The in-wheel accelerometers are more accurate than before, the inertial measurement unit is more precise, and the damper fluid formula was changed for quicker response times and a smoother ride. Engineers then turned their attention to the system's software. They notably gave the sensors the ability to process a wider selection of input and output signals, which translates to a wider spread between comfort and sport. And, they made the response time up to 45-percent quicker. All told, the fourth-generation Magnetic Ride Control technology performs better under heavy braking and hard cornering, it delivers more consistent performance, and it reads the road more accurately. Cadillac proudly notes these are the most comprehensive updates it has made to the system in nearly two decades. Magnetic Ride Control comes standard on the 2021 CT4-V and the 2021 CT5-V, and it's bundled into the CT5's V Performance package, which also includes a mechanical limited-slip differential. It's also standard on the Sport and Platinum variants of the 2021 Escalade, and it's part of the Premium Luxury trim's Performance package.

Cadillac CT4 Luggage Test | How much fits in the trunk?

If you go by exterior specs, the Cadillac CT4 is more similar to a BMW 3 Series or Mercedes C-Class. However, if you go by interior space (or price), it's more like a Mercedes A-Class or BMW 2 Series Gran Coupe. That's definitely true of the trunk, which measures a rinky-dink 10.9 cubic feet, according to GM's specs. That number is what you'd expect in a small luxury coupe rather than a sedan. Indeed, the old ATS Coupe had 10.4 cubic feet.  Nevertheless, the CT4 is somehow not the smallest in the segment. That would be the A-Class and its 8.9-cubic-foot trunk. Good grief. Now, Mercedes has been known to shortchange its cargo capacity numbers so we'll have to luggage test that at some point to know for sure. Today, let's see if the CT4 is in keeping with that 10.9 number. Also, how much worse is it than the also rinky-dink CT5 trunk or the overly optimistic 2 Series Gran Coupe? Yep, that looks pretty small. Also, note the weird rail-like things that hampered the CT5 (below right) are also present here in the CT4 (below left). There's also a similar lip to clear for the folding back seat, but the CT4's opening seems bigger.  As in every luggage test I do, I use two midsize roller suitcases that would need to be checked in at the airport (26 inches long, 16 wide, 11 deep), two roll-aboard suitcases that just barely fit in the overhead (24L x 15W x 10D), and one smaller roll-aboard that fits easily (23L x 15W x 10D). I also include my wife's fancy overnight bag just to spruce things up a bit (21L x 12W x 12D). All but the biggest bag fit, which is exactly the same number that could fit in the CT5. As the below photo shows, the bigger car has just a bit more space left over. Maybe for a pair of grocery bags. That would be consistent with the difference in cubic feet: 11.9 cubic feet versus 10.9. What about the BMW 2 Series Gran Coupe? BMW says it has 15.1 cubic feet of space, but it doesn't. At least not using the same measurement criteria that the vast majority of other manufacturers use. It can carry the biggest bag, but it would still need to leave the fancy bag behind. That's also while utilizing the 2 GC's ample under-floor storage compartment.  As such, the CT4 does indeed have a small trunk, but it's at least in keeping with its competitors. The CT5 cannot say that, regardless of which segment you compare it to.  Unfortunately for the CT4, though, the story does not stop here.

Alonso's Cadillac team wins 2019 24 Hours of Daytona

Two-time Formula One champion Fernando Alonso won the rain-shortened 24 Hours of Daytona, overhauling Felipe Nasr two laps from the eventual finish on Sunday. The Spaniard became only the third Formula One champion to win the race, joining Phil Hill (1964) and Mario Andretti (1972). "It's amazing," Alonso told NBCSN. "Just an amazing experience with this team, from the test and now the race –- a perfect execution of the race. "Very different conditions and we've been competitive in everything –- dry, wet, night and day. Really happy for the team and all the guys." Alonso, who retired from Formula One racing after the 2018 season, said the victory would rank very high among all his accomplishments. "To win this kind of endurance racing at iconic places like Daytona means a lot," he said. "With zero experience and background in endurance before (last year) it's quite a big thing." Already the winner of last year's 24 Hours of Le Mans, the 37-year-old Alonso will attempt to complete the Triple Crown of motorsports by capturing the Indy 500 in May. Driving the Wayne Taylor Cadillac DPI, Alonso took command of the race for keeps when Brazilian Nasr failed to navigate turn one and drove into deep water, losing a 1.5-second advantage. By the time Nasr had things under control, Alonso was 12 seconds ahead. Kamui Kobayashi, Jordan Taylor and Renger vanDer Zande teamed up with Alonso for the victory in his second try in the 24-hour race which was twice red-flagged because of rain and water on the track and was halted 10 minutes early. "With all the rain, I've never seen a race like this," Team Penske boss Roger Penske told NBCSN. Alexander Rossi was the only other driver to finish in the lead lap. He took third. Italian Alex Zanardi's return to endurance racing 17 years after he lost both legs in a horrific race wreck got off to a bad start 90 minutes into the race, At the beginning of his first stint driving, Zanardi encountered a problem with his steering wheel. The 52-year-old was using a special wheel with hand controls for the car, and the connecting pins were damaged when he attempted to connect it as the car was dropped from the jack. His No. 24 BMW Team RLL team finished 32nd overall and ninth in class. Full results. Related Video: Featured Gallery 24 Hours of Daytona 2019 View 20 Photos Motorsports Cadillac daytona