Aerodynamic wheel cover and wheel

A wheel assembly comprising:

• a wheel having a rim configured to support a tire;
• and
• a wheel cover positioned to cover a laterally outward facing surface of the wheel, wherein the wheel cover comprises:
• a central portion comprising a planar surface;
• a first arcuate portion surrounding the central portion and comprising a first arcuate surface having a first radius of curvature;
• a second arcuate portion surrounding the first arcuate portion and comprising a second arcuate surface having a second radius of curvature that is different than the first radius of curvature;
• and
• wherein the planar surface, the first arcuate surface, and the second arcuate surface form a continuous and uninterrupted outer surface from a center of the wheel cover to an outermost peripheral edge of the wheel cover.

A method comprising:

• supporting a tire on a rim of a wheel;
• forming a wheel cover to include:
• a central portion comprising a planar surface;
• a first arcuate portion surrounding the central portion and comprising a first arcuate surface having a first radius of curvature;
• a second arcuate portion surrounding the first arcuate portion and comprising a second arcuate surface having a second radius of curvature that is different than the first radius of curvature;
• and
• wherein the planar surface, the first arcuate surface, and the second arcuate surface form a continuous and uninterrupted outer surface from a center of the wheel cover to an outermost peripheral edge of the wheel cover;
• and
• mounting the wheel cover to the wheel to provide a continuous and uninterrupted aerodynamic surface from the wheel cover to the wheel.