Original sentence: As with each new S-Class, the W140 brought in new innovations such as double-pane window glazing, which substantially reduced outside noise from intruding into the cabin while, self-closing doors and boot lid, electric windows which bounced back down when encountering an obstruction, rear-parking markers which appeared on the rear wings and a heating system which blew warm even after the engine was turned off
Edited sentence: All these features did add to the car's substantial heft though.As with each new S-Class the W140 was brought in innovations such as double-pane window glazing, which substantially reduced outside noise from intruding into the cabin while, self-closing doors and boot lid, electric windows which bounced back down when encountering an obstruction, rear-parking markers which appeared on the rear wings and a heating system which blew warm even after the engine was turned off.For details like this, the W140 is often known as the last Mercedes to be "overengineered", a Mercedes trait that was costing the company in product delays and overbudgeting.For the consumer, the W140 cost a considerable 25% more than its predecessor, the W126.In addition, the intense pressure from Infiniti and Lexus led to adding more features and options as to set the W140 apart from the rest and to justify the higher price.The car was more aggressive, smoother and angular in appearance than its predecessor, but the design also featured slab contourless sides also seen on the first generation Toyota Avalon.The new styling did not receive much praise from the motoring press, claiming that the only real success of the design was to disguise the size of the car, which was much larger than its predecessor