Brook, who oversaw the widely publicized launch of the GMC Hummer EV pickup truck earlier this year, is a veteran of GM that has been with the company since 2004. He was appointed head of Buick and GMC’s marketing divisions in 2017 and is credited with helping to expand with the premium Denali sub-brand and launch the new off-road-focused AT4 sub-brand. Brook also helped overhaul Buick’s marketing department to better focus on its female buyer base, which included entering a special partnership with Reese Witherspoon’s Hello Sunshine production company.
Prior to being appointed head of Buick and GMC marketing, Brook held numerous roles at GM’s now-defunct Holden brand in Australia, including Director of Marketing, Director of Sales and Executive Director of Vehicle Sales, Service and Marketing.
General Motors has already named Brook’s successor, Molly Peck, who will move into the new role on September 1st, 2021. Peck most recently served as the head of marketing for SAIC-GM in China, where she helped grow the premium brand’s local sales by 4.1 percent in 2020. Peck has been with GM for more than 30 years and has held high-ranking marketing roles with each of GM’s four brands in the U.S., China and the Middle East in that time.
Peck will take on GMC’s marketing department just as the brand prepares to launch the new Hummer EV electric pickup later this year. GM began accepting reservations for the First Edition version of the electric truck this year, which sold out in 10 minutes. Customers can still place orders for other versions of the truck via the GMC website. The vehicle will enter production at the automaker’s new Factory Zero plant in Michigan later this year.