E63

E63 is a model designation used in the automotive industry, most commonly associated with two distinct German carmakers, BMW and Mercedes-Benz, each using the code to refer to different high-performance or specialized models.

In BMW nomenclature, E63 denotes the two‑door coupe variant of the first-generation 6 Series, produced from 2003 to 2010. The related E64 code was used for the 6 Series convertible. The E63 offered a range of engines, from inline-six and V8 configurations in standard models to the high-performance M6 variant that used a more powerful engine and upgraded dynamics. The coupe was known for its styling, chassis focus, and balance between performance and luxury for its era.

In Mercedes-Benz's AMG lineup, the E63 AMG refers to the high-performance version of the E-Class. It has appeared across multiple generations, including the W211 (introduced in the mid-2000s), W212 (2010s), and W213 (late 2010s onward). The E63 AMG typically features a high-output V8 engine, with powertrains evolving from naturally aspirated to turbocharged setups and, in some iterations, all-wheel drive. Compared with standard E-Class models, the E63 AMG includes performance-oriented suspension, braking, and aerodynamic enhancements.

Because the same designation is used by more than one manufacturer for different vehicles, the meaning of E63 depends on the context, particularly whether the reference is to BMW’s 6 Series coupe or Mercedes-Benz’s E-Class AMG variant.