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Cold start comparison: 2020 Alfa Romeo Giulia Quadrifoglio vs. 2013 Dodge Challenger SRT8

The 2020 Alfa Romeo Giulia Quadrifoglio is a five-seat, compact luxury sport sedan packing 505 horsepower thanks to a 2.9-liter twin-turbocharged V6. My personal 2013 Dodge Challenger SRT8 392 is ... well ... not. It's a full-sized muscle coupe whose iron-block 6.4-liter V8 makes 470 hp in the very traditional way: it's freakin' huge, like everything else about the car.  On paper, these two have nothing in common beyond the fact that they were built by the same multi-national manufacturing entity.  But if paper were the be-all and end-all of automotive rankings, everybody would buy the same car. And we don't, especially as enthusiasts. Whether it's looks or tuning or vague "intangibles" or something as simple as the way a car sounds, we often put a priority on the things that trigger our emotions rather than setting out to simply buy whatever the "best" car is at that particular moment.  So, what do these two have in common? They both sound really, really good. Like looks, sounds are subjective. While a rubric most assuredly exists in the world of marketing (attraction is as much a science as any other human response), we have no way of objectively scoring the beauty of either of these cars, and the same applies to the qualities of the sound waves being emitted through their tail pipes.  But we can measure how loud they are. In fact, there's even an app for that. Dozens, as it turns out. So, I picked one at random that recorded peak loudness levels, and set off to conduct an entirely pointless and only vaguely scientific experiment with the two cars that happened to be in my garage at the same time.  For the test, I opened up a window and cracked the garage door (so as not to inflict carbon monoxide poisoning upon myself in the name of discovery), and then placed my phone on a tripod behind the center of each car's trunk lid. I fired each one up and let the app do the rest. I then placed my GoPro on top of the trunk for each test so that I could review the video afterward for any anomalies.  I started with the Challenger. The 6.4-liter Hemi under the hood of this big coupe is essentially the same lump found under the hood of quite a few Ram pickups, and it has the accessories to prove it. Its starter is loud and distinctive. Almost as loud, it turns out, as the exhaust itself. As its loud pew-pew faded behind the V8's barking cold start, we recorded a peak of 83.7 decibels. In the app's judgment, that's roughly the equivalent of a busy street.

Watch a Dodge Challenger Demon break 200 mph

We all know that the Dodge Challenger Demon is a monster in short bursts. Its 840 horsepower and drag-ready tires allow it to hit 60 mph in a claimed 2.3 seconds on the way to a sub-10-second quarter-mile time. But it turns out that the Demon doesn't run out of grunt after the quarter-mile. This was proven by a group that took one to the runway where space shuttles landed, Johnny Bohmer Proving Grounds in Florida. There they hit a top speed of 203 mph. Dodge doesn't give a top speed for the Demon, but for a bit of comparison, the 707-horsepower Hellcat Widebody has a top speed of 199 mph. Watching the video, it's interesting how calm things appear to be in the cabin. There doesn't appear to be much vibration, and the car was clearly staying steady in a straight line, since the driver hardly moved the wheel. And before you know it, the 2.3-mile run is over. The run's not official unless a record-keeping body is witnessing it, and there will surely be Demons out there trying to beat this run, but it's sure fun to watch in the meantime. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Dodge Durango SRT Pursuit packs the 797-horsepower Hellcat Redeye engine

When the Jeep Grand Cherokee SRT Trackhawk launched we were stunned that it featured both the 707-horsepower Hellcat engine and all-wheel drive. But SRT has one-upped itself with a custom Durango for the One Lap of America motorsports event. It's called the Dodge Durango SRT Pursuit — nicknamed "Speed Trap" — and it has the 797-horsepower Hellcat Redeye engine, and it still has all-wheel drive! Besides the 90-horsepower advantage over the stock Trackhawk, the Durango SRT Pursuit race SUV gets improved handling via concept lowering springs and 11-inch wide wheels with 305-mm wide tires that are shared with the Challenger Hellcat Widebody. It has improved stopping ability from 15.75-inch brake rotors up front with 6-piston calipers, and 13.78-inch rotors with four-piston calipers. This is the same kind of setup as the Trackhawk uses. Oddly enough, Dodge left the factory heated and cooled front seats, but removed the two rear rows of seats for weight savings. The Durango also gets a roll cage and racing harness. The finishing touches include a cat-back exhaust and the low-profile police light bar and paint scheme. Now before you ask, there don't appear to be plans to put a Redeye-powered Durango into production. With that being said, the company clearly has the capability to mate that engine to an all-wheel-drive system, and it would be hard to imagine the company not capitalizing on that. Even if the powertrain didn't make it to a Durango, it would seem like a great complement to the existing Grand Cherokee Trackhawk, or even an updated version of it. Hint, hint, wink, wink, FCA. Related Video: