GMC is a manufacturer of unique cases based in Korea founded in 1996. They manufacture cases, HTPC cases and PSUs and have a range of designs that are not normal designs for cases. The Noblesses K-2 Ebony, R-2 TOAST and R-3 Corona were reviewed by me a few months ago, with each case having special features never before seen in a case before. Today I’m reviewing the latest case to come out of the R+D factory of GMC Korea, the R-4 Bulldozer. This follows in the design philosophy of the earlier cases by having a stylish design that takes its inspiration from construction vehicles i.e. bulldozers.