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BMW M4 vs. Lexus RC F in Head 2 Head sports coupe showdown

It's the showdown everyone's been looking forward to, the East versus West grudge match of the year. We're talking, of course, about the BMW M4 versus the Lexus RC F.
Although BMW uses a twin-turbo straight-six and the Lexus uses a free-breathing V8, the two are pretty closely matched on paper: a luxury coupe with over 400 horsepower channeled to the rear wheels.
The BMW has been doing these cars for longer, and the M4 boasts a higher power-to-weight ratio. But then the RC F has more power - and without forced induction to break up the rev range. So which is the better luxury muscle coupe? Watch the latest episode of Motor Trend Head 2 Head to find out.

2019 BMW M850i xDrive: How it compares on paper with other GT coupes

Although the hot new vehicles for the rich seem to mainly comprise SUVs and supercars, the neglected luxury GT coupe segment is starting to see some life again. The latest to add a spark to this set is the 2019 BMW M850i xDrive. It goes on sale later this year, and revives the 8 Series that's been dead since the 1990s. The first version available to Americans will be one with a twin-turbo 4.4-liter V8, with other versions likely following. Before it launches, we wanted to get a lay of the grand-touring land and see how the new BMW stacks up to the competition in performance, practicality and price. While some of these models have higher-performance or more-affordable iterations, we picked the versions that would be the closest match to this 8 Series model. They include the 2019 Lexus LC 500, 2018 Mercedes-Benz SL 550, 2018 Mercedes-Benz S 560 Coupe and the 2018 Maserati GranTurismo. We will also provide some short summaries on our experiences with these cars, but to get a full picture of each model, be sure to check out their full reviews. And if you want to compare any of these cars with models you don't see here, be sure to try out our car comparison tool. Engines, transmissions and performance On paper, the BMW M850i xDrive is clearly the performer of the group. It has the most power and torque at 523 horsepower and 553 pound-feet. Coupled with all-wheel-drive and an eight-speed automatic, the car is able to overcome its relatively portly 4,478-pound curb weight to hit 60 mph in a scant 3.6 seconds. That's more than half a second quicker than the lightest car in the group, the Mercedes-Benz SL550, which weighs 4,012 pounds. The other three vehicles are in the low- to mid-4-second range to 60 mph. Though the Maserati is the slowest to 60 mph, it does boast the highest top speed of 186 mph. The M850i and SL 550 are electronically limited to 155 mph, while the Lexus is limited to 168 mph. The Mercedes S 560 has the lowest top speed at an electronically limited 130 mph. View 52 Photos Of interest is that there's a 50/50 split among these cars between using a pair of turbos, and having none at all. The BMW and Mercedes resort to forced induction, whereas the Lexus and Maserati choose to stay naturally aspirated. This is likely why the Germans break 500 pound-feet of torque, while the others don't make it to 400. Also interesting is the spread of gear quantity. The Maserati has just six ratios to choose from, and the Lexus has a whopping 10.

Amazon Alexa will become your co-pilot in Toyota, Lexus cars

A number of carmakers have introduced Amazon Alexa voice commands that can activate the locks and climate control on their cars, but Toyota is going a step further with Alexa integration by bringing Alexa into the car. Starting in 2018, Toyota will join the likes of BMW by offering the full Alexa voice-controlled app in Toyota and Lexus vehicles with either EnTune 3.0 or EnForm 2.0 infotainment systems. Though Toyota doesn't specifically say which models, we suspect the Camry and Sienna will be the first, since they're the only Toyotas with EnTune 3.0. With Lexus, the LC, NX, RC, and LS models all have available EnForm 2.0, so any or all of those could get Alexa this year. Toyota suggests a number of ways users could use Alexa in the car, such as for taking notes and setting reminders, activating apps, or for controlling other smart devices, such as the heating and cooling on your house. That suggestion rings strongly to those of us in the midst of the bomb-cyclone winter storm. We imagine you'll probably even be able to order goods from Amazon, too. One thing that is strange is that Toyota has made this leap in connectivity, and yet you still can't get Apple CarPlay or Android Auto on any Toyota or Lexus. This is especially odd as it's safe to assume more people own and use Apple and Android products on a daily basis and on the road than Amazon Alexa. Not to mention the fact that almost every other automaker offers both systems on their vehicles. Either way, mobile Alexa presents some interesting possibilities and is sure to be appealing to fans of the Amazon service. And while only a few models will be available with it in 2018, Toyota and Lexus will expand availability in 2019. Related Video: