G2 - Grape has 50 calories and 12 grams of sugar in a 20 oz serving.
Learn more at https://www.pepsicobeveragefacts.com/Home/Product?formula=32199&form=RTD&size=20
Irn Bru has 65 calories and 16 grams of sugar in a 11.15 oz serving.
Learn more at https://www.agbarr.co.uk/our-brands/irn-bru/