BMW 5 Series Touring (2015) is 330 mm (12.99 inch) longer, 89 mm (3.50 inch) wider, 127 mm (5.00 inch) higher and has 169 liters (5.97 ft3) bigger cargo space than Lexus IS (2015).
Lexus IS (2015) is 360 kg (794 lbs) lighter than BMW 5 Series Touring (2015).