The wheelbase of the 2017 Buick Regal is 112.8 inches compared to the wheelbase of the 2017 Chevrolet Malibu, which is 111.4 inches. The wheelbase for both vehicles are almost the... moreThe wheelbase of the 2017 Buick Regal is 112.8 inches compared to the wheelbase of the 2017 Chevrolet Malibu, which is 111.4 inches. The wheelbase for both vehicles are almost the same length, but the Buick Regal has an overall longer wheelbase than that of the Chevrolet Malibu. This difference in wheelbase length makes the Regal a slightly larger vehicle overall than the Malibu. Thus, it can be said that yes, the Buick Regal is bigger than a Chevy Malibu. Additionally, the wheelbase of both vehicles contributes to their respective exterior design and size. The Chevrolet Malibu has a wheelbase contributing to its sporty and sleek exterior design. On the other hand, the wheelbase of the Buick Regal gives it an overall longer body length, allowing for a more spacious interior space compared to that of the Malibu. This difference in wheelbase may be why many consider the Buick Regal to be slightly larger than its Chevrolet counterpart. less