During a second attempt in September, BMW driver Matt Mullins made the climb in an officially certified 10:48:60.
Every new RDX now has Acura's Super Handling All-Wheel-Drive system, driving up its base price by $2300.
At $68,895 a pop, the 50 U.S.-bound copies feature pearl green paint, a brown interior, and a gray cloth top.
The custom Blazer is based on a 2023 Chevy Silverado with a shortened chassis, long-travel suspension, and big ol' tires.
The new compact SUV will debut at the Los Angeles auto show in a few weeks, and it should introduce new styling and features.