Spy shots showed the 2021 Mercedes-Maybach GLS for the first time; Honda priced the 2019 Civic Type-R at $36,595; and Classic Recreations dropped an 815-horsepower Mustang Boss 429. It’s the Week in Reverse, right here at Motor Authority. We spied the 2021 Mercedes-Maybach GLS for the first time. Rumors have suggested an ultra-luxurious…