These summer tyres from Hankook comes with a diameter of 20", a profile of 30% and a width of 265 mm. It has a C-rating in fuel efficiency, which is in the middle segment.
From Protyre
265/30R20 94Y XL Hankook Ventus S1 evo3 265/30R20 94Y XL | Protyre - Car Tyres
This product is also available at 2 unverified merchants.