Owners describe the W140 as a continent-crushing highway car that feels most composed above 70 mph, delivering unmatched quiet and comfort while being too cumbersome and thirsty (single-digit city, high-teens highway MPG) to make sense around town. Long-trip praise is near-universal, with multiple owners rating it the best-riding car they have driven.
Driving character: serene, comes alive at highway speed
Mercedes-Benz S-Class (W140) · driving