The non-turbo diesels (and even the gas fours) are universally described as extremely slow, comfortable cruising in the 55-70 mph range and struggling badly on grades. Owners frame the low output as a character trait to be tolerated rather than a defect, but it clearly shapes buying decisions and pricing.
Painfully slow: highway speed and the underpowered diesels
Mercedes-Benz Gelandewagen (W460) · driving