Auto show season heats up in November as Las Vegas and Los Angeles host two fall favorites: the custom-car heaven of the Specialty Equipment Manufacturers Association Nov. 4-7 and the design-rich Los Angeles auto show Nov. 21-30.

The Ford Mustang is an aftermarket tuner’s dream and Ford will start the stampede at SEMA with tuned models of the 2015 Mustang, which isn’t even on sale yet.

Legendary LA dealer Galpin Ford contributes a 725-hp model with gold-flecked black paint. NASCAR giant Richard Petty’s tuning shop offers a Mustang bearing the King’s signature, his blue paint scheme, number 43 and a V8 supercharged by fellow NASCAR giant Jack Roush.

Fiat Chrysler will have cars based on a range of models, including the Chrysler 200, Ram 2500 pickup, Dodge Dart and Challenger and — most intriguingly — the new Jeep Renegade subcompact SUV, which goes on sale early next year. The Renegade Riptide aims to appeal to beachcombers while the Renegade Frostbite has accessories tailored for winter sports.

Chevrolet will show tuned versions of its SS sport sedan, Impala, Cruze and Sonic. For 2015, all SS sedans get GM’s adaptive Magnetic Ride Control for better ride and handling. The Sonic Performance concept features engine and suspension changes for more power and better handling.

Hundreds of other tuned models from dozens of brands and customizers will fill the Las Vegas Convention Center for SEMA.

The Staples center in downtown LA will get its share of high-performance models, too, starting with the eagerly awaited Cadillac ATS-V sport sedan.

At the other end of the spectrum, the Fiat 500X will give U.S. customers their first look at the subcompact crossover expected to ignite the Italian brand’s sales. A restyled Chrysler 300 sedan will also debut.

Ford’s Lincoln brand is expected to reveal more about its Black Label line, which aims to take its dealer experience and interior materials to new levels.

Honda will jump into a hot new market segment with the HR-V subcompact crossover SUV. Smaller than the CR-V, the HR-V is likely to use the same 1.5L engine and continuously variable transmission as the Fit subcompact car.

The LA show has become a popular spot for automakers to test new design themes.

Audi promises a concept car that presages the styling of its upcoming production cars. Audi’s current design theme has been on the road for years, but it still looks beautiful and advanced. That makes this the perfect time for Audi, which considers itself a design leader, to move on. However, it also makes this the exact time many executives would be tempted to stand pat.

We’ll see how Audi lives up to its aspirations to leadership when we get a look at the concept, which is the first show car by the brand’s new design chief, Marc Lichte.

The LA show also includes the announcement of Green Car of the Year. The finalists are:

■ Audi A3 TDI diesel compact

■ BMW i3 electric car

■ Chevrolet Impala Bi-Fuel, which runs on either gasoline or natural gas

■ Honda Fit gasoline-powered subcompact

■ Volkswagen Golf, which has gasoline, diesel and electric models.

Expect news about more debuts by Ford, Mercedes-Benz, Lexus and others between now and the LA show’s press days, Nov. 19-20.

Contact Mark Phelan: 313-222-6731 or Follow him on Twitter @mark_phelan.