The 1999-2003 models were the same 1602cc naturally aspirated engines.

This naturally aspirated V8 will also be used to replace most of the "55" models.

The naturally aspirated came as standard issue with the W58 manual transmission.

Both cars were to be powered by naturally aspirated V-8 engines.

A total of 654 naturally aspirated 3000Ms were built.

This left the naturally aspirated 3.0 liter V6 as the only engine available for the 2011 model year.

Both versions were available in either naturally aspirated and turbocharged form.

Mercedes has claimed it is the world's most powerful naturally aspirated V8 engine.

At 405 hp, it is the most powerful naturally aspirated straight-6 ever fitted to a regular production car.

The new rules required a standardized 3.5L naturally aspirated V10.