Porsche keeps the naturally aspirated GT3 alive for 2018

While the rest of the 911 lineup went with turbocharged engines, the GT3 stayed the course with its new 2018 model.

The 2018 GT3 relies on a new 4.0-liter flat-six, which puts out 500 horsepower and 339 pound-feet of torque.

The new engine is based on the one Porsche now uses in its 911 racecars, including the mid-engine RSR.

Buyers can opt for a seven-speed dual-clutch transmission or a good ol'-fashioned six-speed manual.

Standard performance equipment includes rear axle steering, which moves the rear axle either with or against the front axle to reduce turning angles and boost high-speed agility.

Dynamic engine mounts minimize drivetrain vibration, while a locking rear differential helps maintain rear-wheel traction -- no all-wheel drive here, folks.

While it is a new GT3, it doesn't look too much different than the old one.

There's a new spoiler and diffuser, as well as a new front fascia.

The interior borrows its steering wheel from the 918 Spyder hypercar, and standard sport seats feature enough bolstering to keep even the slimmest of drivers in the seat.

The 2018 Porsche 911 GT3 goes on sale this fall. The MSRP is $143,600.