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Autoblog Podcast #407

Episode #407 of the Autoblog Podcast is here, and this week, Dan Roth, Steven Ewing, and Sebastian Blanco talk about the Michelin Challenge Bibendum, the Toyota Mirai, and the BMW 3 Series falling off the Car and Driver 10Best list. We start with what's in the Autoblog Garage and finish up with some of your questions, and for those of you who hung with us live on our UStream channel, thanks for taking the time. Check out the rundown below with times for topics, and you can follow along down below with our Q&A. Thanks for listening! Autoblog Podcast #407: The video meant to be presented here is no longer available. Sorry for the inconvenience. Topics: Challenge Bibendum Toyota Mirai fuel cell 3 Series falls off Car and Driver 10Best list In The Autoblog Garage: 2015 Acura TLX 2015 Dodge Charger 392 Audi Prologue Concept Hosts: Dan Roth, Steven Ewing, Sebastian Blanco Runtime: 01:07:55 Rundown: Intro and Garage - 00:00 Challenge Bibendum - 18:32 Toyota Mirai - 28:20 C/D 10Best - 44:52 Q&A - 53:52 Get the podcast: [UStream] Listen live on Mondays at 10 PM Eastern at UStream [iTunes] Subscribe to the Autoblog Podcast in iTunes [RSS] Add the Autoblog Podcast feed to your RSS aggregator [MP3] Download the MP3 directly Feedback: Email: Podcast at Autoblog dot com Review the show in iTunes Podcasts Acura Audi BMW Dodge Toyota toyota mirai challenge bibendum

BMW reveals M4 safety car with innovating water injection system [w/video]

Racing series don't just pick their safety cars at random, or use just whatever car is lying around. These days the car that sets the pace at the front of the pack is typically provided through consideration by a sponsor. In the MotoGP series, that's BMW and its M division, which have served up the Official Car of MotoGP since 1999. What you're looking at is the latest, and it packs some innovative technology on board. Aside from the matte black wrap with BMW's iconic striped livery, upgraded aero kit, retrofitted interior and emergency equipment, this BMW M4 coupe packs a new injection system under the hood. Only instead of injecting fuel, it injects water into the combustion chamber – something that wouldn't usually be recommended, but BMW insists actually aids in the combustion process. The idea is that the temperature of the air being mixed with the fuel inside the engine is usually hotter than ideal, so the system injects a fine mist of water into the collector in order to reduce the air's temperature... sort of like one of those hydrating misters at an amusement park or outdoor mall, but in an even hotter environment. The system brings the temperature of the air down to a more optimal temperature, helping it combust better. The process is said to yield a number of positive effects. For one, it reduces knocking. For another, it can make more out of lower-octane fuel where higher octane isn't available. It also can control the adverse effects of higher ambient temperature on the combustion process. But most of all, it increases output and reduce fuel consumption by around eight percent. Whether that eight percent is worth the added weight of the system – particularly with water pump and a 1.3-gallon tank in the trunk – is up for debate. But we'd imagine that the Bavarian engineers have weighed very carefully. Of course there's also the matter of refilling the water tank, which BMW says would be carried out whenever the safety car is refueled, but in real-world conditions would only necessitate attention once every five top-ups at the gas station. By now you might have guessed that BMW probably didn't develop this system just for the MotoGP safety car, and isn't planning on keeping it confined to the racetrack. Instead it's being tested and demonstrated on the safety car before being rolled out on production models in the future.

Tesla says Model 3 is best-selling midsize premium sedan in America

Auto sales figures are sort of fuzzy numbers, no matter how you slice them and no matter which manufacturer you're talking about. Unless you're specifically tracking vehicle registrations, automakers generally self-report the figures. So, you have to trust that they aren't doing anything too tricky. Plus, not every sale is equal, as some are logged as dealership loaners or demo models, some go to fleets (like to a rental car agency), and still others are, of course, bought by traditional customers looking for a new daily driver. With that preamble out of the way, when we saw a tweet from Tesla claiming that the all-electric Model 3 is the best-selling midsize premium sedan in America, our interest was piqued. According to Tesla, market share of the Model 3 has just surpassed the Mercedes-Benz C-Class, which had up until now led the Audi A4, BMW 3 Series, and Lexus IS as the best-selling sedan in its class. Note that the graph from Tesla below is, we think, specific to four-door models. So, is it true? Judging by the numbers we can find, including some from Bloomberg, which has a running chart to track Model 3 registrations, the answer is... probably. We don't know exactly how many Model 3 sedans Tesla is currently cranking out, but Bloomberg estimates production at about 2,560 units per week, and total sales for 2018 at 34,414. We know the number is increasing regularly, though, and Elon Musk has said most recently production sits around 500 units per day, which, on a seven-day cycle, would be 3,500 per week. We looked up Mercedes' sales figures for the month of May, 2018, and found that the German brand sold 5,419 C-Class models last month, for a total of 23,917 for the year (incidentally, that's down more than 30 percent from the year prior). While the bulk of those sales would surely be made up of sedans, it would also include a small percentage of coupes. Either way, it's likely that Tesla is currently producing and selling more Model 3s than Mercedes is C-Classes. Now, it's also worth considering if the C-Class is the only vehicle from Mercedes that directly competes with the Model 3. We'd guess customers may also cross-shop the CLA sedan with the Tesla, and if that's the case, you might decide it's worth adding in Mercedes' 2,527 CLA-Class sales last month and 9,622 so far for the year. The same argument could be made for certain versions of the BMW 2 and 4 Series.