Alfa Romeo is bringing a $70,000 BMW M3-killer to the US

Alfa Romeo's return to the US was applauded by many a car enthusiast, thanks to the 4C coupe, the brand's first new product in the US market since it returned after a two-decade hiatus last year.

The 4C drives so well, it's been called a "Ferrari for half the price," which gives you an idea of what Alfa Romeo is aspiring to be in its second go-around stateside.

Depite the general shift toward fuel efficiency, hybrid and electric technology, the Italian carmaker is banking on American buyers' affinity for speed.

That's probably a wise decision, but if you're planning to stare down BMW - the king of the sports sedan universe - you also need to come with another car up your sleeve. It should have four doors and be able tgo fast in the twisties.

After all, no automotive brand can survive in the US without a good 4-door sedan. And you can't show up with the just any sedan - there are more than enough grocery-getters on the market to choose from.

Thankfully, Alfa Romeo seems to be fully aware of that reality - hence the carmaker's latest reveal at the 2015 LA Auto Show in Los Angelesa: the Giulia Quadrifoglio sedan. That's Italian for M3-killer.

The Giulia sport sedan will hit US shores with a Ferrari-derived bi-turbo V6 engine that sends 505 horsepower to its rear wheels. Alfa Romeo says it will run from 0 to 60 mph in 3.8 seconds.

And, because you'll definitely need it, it comes with beefy carbon ceramic brakes, and a full suite of the kinds of safety features you expect from a $70,000 luxury sport sedan - like lane-departure warning, adaptive cruise control and autonomous braking.

The Giulia is still a ways off. We likely won't see them in US dealers until late 2016. But if the performance numbers and hype are to be believed, then we can quote the brand right here and say, "love is worth the wait."