Just got back from a 4000 mile trip around the Southwest, only saw ten 5th Gens. 4 in the last 400 miles between Las Vegas and Monterey, CA.
Black, Hwy 50, West of Lake Tahoe, CA
Silver, I80, East of SLC, Utah
Black, Near Durango, CO
White, I10 East of Deming, NM
Silver, Sierra Vista, AZ
Silver, Tucson, AZ
2 White, Black, Silver Hwy 58 between Vegas and Monterey.
PS I did see 7 TEs on the lot of Mark Miller Toyota in Salt Lake City (Including a Red one)