1972 Dodge Challenger Rallye 340 4 Barrel V8 on 2040-cars

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2018 Dodge Demon comes with a factory tune for race gas

We knew the Dodge Demon was going to make a lot of power, but the ongoing question has been how much. We've seen estimates of between 757 and 1,121, but those have simply been guesses based on the numbers found in promo photos. However, if we had to put our bets on a horsepower rating, we'll probably go with the higher estimates because the Demon can run on race gas. Yes, the latest teaser for the Demon reveals that it will come with a factory tune optimized for race gas, which is rated at 100 octane or higher. Running such high octane, in combination with its heavy-duty intake cooling, means the Demon can handle absurd amounts of boost and advanced timing without running the risk of dangerous pre-ignition or detonation. Of course this also means the Demon should be capable of astonishing power with the high-octane calibration. The tune will be included in the Demon crate on a separate engine computer that the owner can swap out when he or she is ready to race. In addition to the computer, the center stack also has a button to activate the high-octane mode. A pair of fuel pumps and larger injectors also ensure the engine gets plenty of that sweet racing fuel. When not running the high-octane tune, the Demon runs on your average premium gasoline. Also, in case you accidentally run premium gas with the high-octane mode activated, the car will automatically switch to the default tune if engine knock is detected. You can get a peek at the system in the video above, and be on the lookout for a bonus video tomorrow. The full reveal will be next week on April 11 at the New York auto show. Related Video:

These cars are headed to the Great Crusher In The Sky

It happens every year. We bid adieu to some cars and trucks that will be missed, and say good riddance to others wondering how they stayed around so long. Whether they're being killed off for slow sales or due to a new product coming along to replace them, the list of vehicles being discontinued after 2012 is surprisingly long and diverse.
CNN Money has compiled a list of departing vehicles, to which we've added a few more of our own. In the slow sales column, cars like the Lexus HS 250h, Mercedes-Benz R-Class and the full Maybach lineup appear, while the Ford Escape Hybrid, Mazda CX-7 and Hyundai Veracruz are all having their gaps filled with more modern and more fuel-efficient alternatives. Obvious exceptions to the rule include models that still sell in decent numbers like the Jeep Liberty and the Chrysler Town & Country (which will eventually be replaced by a crossover-like vehicle).
Check out our gallery of discontinued cars above, then scroll down for more information.

Nine cars we wish were convertibles

The snow has melted, the sun is shining, and the days are getting longer. At the Autoblog Detroit office we feel like our winter hibernation is finally over. And with warmer temperatures come visions of opening up a convertible roof and cruising. You know, just turn up the bass and let the Alpine blast. There are plenty of droptops on sale in the US, and more on the way (like the 2016 Mazda MX-5 Miata). That said, we always want more. More! More! More! In that spirit, we cooked up a list of nine cars aren't currently sold as convertible, but ought to be. Check out our picks, below. Summer's just around the corner. Subaru BRZ / Scion FR-S In some parallel universe, this car actually happened. Toyota showed us a FT 86 Convertible concept at the Geneva Motor Show in 2013, and we immediately started licking our chops over the thought of a rear-wheel-drive convertible based on the Subaru BRZ and Scion FR-S twins. These days, the MX-5 Miata is our only option for affordable roadster fun. A competitor to the Mazda seems like a no-brainer to us, especially since we have naught but good to say about the BRZ/FR-S as-is. Unfortunately in our present timeline, this car is as likely for production as a BRZ STI. Which is to say, not very. Dang. Lexus RC F Unlike the FR-S, a convertible from Toyota's luxury division might actually see the light of day. The current IS convertible is about to be phased out, and the Lexus LF-C2 concept from the 2014 Los Angeles Auto Show is really a thinly veiled look at a possible RC convertible. A droptop RC would be plenty good, but let's reach for the starts. What we really want is to run topless in an RC F, complete with that powerful, loud, 5.0-liter V8 engine. Lexus says the RC F is a true competitor to the BMW M4. If that's true, it only makes sense for Lexus to mimic the Germans and offer its performance coupe in a folding hardtop form. Maybach Landaulet Maybach is bach back, recast as an upper crust trim level for Mercedes-Benz. The Mercedes-Maybach S600 is seriously awesome, and more luxurious than a trip to the spa. But why not go a step into the truly ridiculous levels of extravagence and bring back that open-top Landaulet? We think your local princess will love this idea, and with better S-Class bones underneath, Jeeves will have a pretty enjoyable ship to steer, too. Besides, with that slick new Mercedes design language, a Landaulet redux wouldn't be nearly as hideous as the old model, pictured here.