1997 Dodge Ram 2500 Reg Cab Hd 4wd on 2040-cars

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Jay Leno drives a 1970 Dodge Charger with 1,650 horsepower

When Jay Leno says a vehicle might have too much horsepower, he's got our attention piqued. That's exactly what he thinks about the 1970 Dodge Charger Tantrum from Wisconsin-based SpeedKore Performance. While it still looks like a classic muscle car, the front end now features a carbon fiber hood and fenders. Underneath the lightweight parts, there's a twin-turbo, 9.0-liter Mercury Marine offshore boat racing engine with an astonishing 1,650 horsepower, or an only slightly less asinine 1,350 hp on pump gas. Jay is very mechanically intrigued by the Charger at the beginning of this video, and puts it on the lift to take a look at the underside. The engine plumbing is a thing of beauty, and the mill packs a massive radiator and intercooler to keep things running cool. Leno's drive in the Tantrum is especially interesting. The beastly engine is difficult to control, and anything above half throttle in most gears can spin the rear tires. The significant turbo lag also makes the power unpredictable. When Jay finally finds a straight piece of road, he puts the hammer down and rockets into the distance. And, of course, you know Jay's not going to end the video without some suitably smoking tires. Related Video:

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.

2016 Dodge Viper ACR racks up lap records

With 645 horsepower and an adjustable spoiler nearly six feet wide, the 2016 Dodge Viper ACR would look at home on the runways of most any airport, air base, or aircraft carrier in the world. But it's not built for the runway. It's built for the race track. And it has positively mastered them one after another. In fact, the new Viper ACR has not only beat the lap times of its own predecessor as it set out to, but took the production-car lap record at 13 tracks across the country. The endeavor started out at the Inde Motorsport Ranch in Arizona, where development engineer Chris "The Wolf" Winkler set a lap time of 1:33.75 on the Configuration 4 track to beat every other street-legal vehicle to ever lap the circuit. Then it was off to Buttonwillow, the MotorSport Ranch (in Cresson, TX), Big Willow, VIR, Grattan, Pittsburg, GingerMan, the Motown Mile, Nelson Ledges, Waterford Hills, and Road Atlanta. And with the new American Club Racer, Dodge took the lap record at each and every one. The journey culminated just days ago at Laguna Seca, where track expert Randy Pobst climbed into the Viper ACR and set a lap time of 1:28.65. That's 5.27 seconds faster than the previous ACR's time, and 1.24 seconds faster than the Porsche 918 Spyder that held the record until now. The sum total is a bragging-rights sheet of lap records set at 13 tracks across these United States. And you don't have to take Dodge's word on that. The records have been certified by the Sports Car Club of America (SCCA), cementing the ACR's place in the record books. Nice work if you can get it, and you can scope it out in the video above and press release below. Related Video: 2016 Dodge Viper ACR Is Undisputed Track Record King - Ultimate street-legal race car sets new high-performance benchmark with more track records than any production car in the world - Sports Car Club of America (SCCA) has certified lap records at 13 road courses, including world-famous Laguna Seca, Road Atlanta and Virginia International Raceway - With 645 horsepower and more torque than any naturally aspirated engine in a production car, the ACR is purpose built for weekend club racers who want the most extreme, but street-legal, track car available - Significant aerodynamic and suspension upgrades, new Carbon Ceramic brakes with six-piston calipers from Brembo and high-performance Kumho tires, specifically designed for the new 2016 ACR, set this Viper apart on any road course November 3, 2015, Auburn Hills, Mich.