Ross Downing GMC Hammond Shares the Best of Tangipahoa Win Ross Downing has been voted 2026 Best Auto Dealership in the Hammond Daily Star's Best of Tangipahoa. Our GMC team in Hammond wants to say thank you. From Sierra owners who count on their trucks for work to families who drive a Yukon or Acadia every day, our customers are the heart of this award. Thank you for trusting us with your vehicles and for taking the time to vote. Being part of a family-owned group that has served Hammond since 1973 means we hold ourselves to a high standard: honest advice, clear answers and a service team that treats your vehicle like it's their own. Read the full story from Ross Downing. Ross Downing GMC Hammond, 1301 S. Morrison Blvd. #101, Hammond, LA 70403 Shop and schedule service online or call (985) 543-6833.
