Brazilian '02 Chevrolet Blazer with underbody CNG kit
Natural gas is quite popular in Brazil as a motor fuel, even though its availability is not nationwide. However, one of the most mentioned side-effects besides occasional decreases on the performance is the space usually taken by the tanks when they're mounted inside the luggage compartment. Some vehicle such as the 2nd-generation Chevrolet S10 Blazer, which by the way was the only generation of this model to be made in Brazil, the fitment of the tanks under the floor is an option much sought after because of its lesser impact over the load volume. However, in the Blazer a removal of the rear sway-bar is required in order to get clearance for a pair of CNG tanks and their braces to fit in the space where the stock spare wheel rack is fitted.