Buick Excelle GT (2015) is 934 mm (36.77 inch) longer, 155 mm (6.10 inch) wider and has 180 liters (6.36 ft3) bigger cargo space than FIAT Panda (2014).
FIAT Panda (2014) is 88 mm (3.46 inch) higher and 210 kg (463 lbs) lighter than Buick Excelle GT (2015).