LEGO roller coaster with loop and 7 cars By adminNovember 21, 2012January 21, 2017Page-Home, Page-Videos 100% lego roller coaster with banked turns, loop, lift and 7 cars. This lego roller coaster is about 5x1x0.8 (lwh) meters big. The train weighs more than 400 grams (without minifigs). It took about 4 to 5 days to make with 3 persons.