Hmm, I really don't know! I think the Sunline stuff is a bit more white/brown where I think birch is a bit more yellow. Maybe it's just because I'm thinking of the old style birch paneling in old tin cans.
I guess it's all in the stain though. I think the Sunline panel has more of a clearcoat on it instead of stain.
2007 T-286SR Cherry/Granola, #6236, original owner, current mileage: 9467.8 (as of 5/26/19)
1997 T-2653 Blue Denim, #5471
1979 12 1/2' MC, Beige & Avocado, #4639
Past Sunlines: '97 T-2653 #5089, '94 T-2251, '86 T-1550, '94 T-2363, '98 T-270SR