Vehicle body side sill reinforcement panel

A vehicle body, the vehicle body comprising:

• a side sill, the side sill comprising:
• a side sill inner panel;
• a side sill outer panel;
• and
• a unitary side sill reinforcement panel located between the side sill inner panel and the side sill outer panel, the side sill reinforcement panel comprising:
• a first wall portion, wherein the first wall portion is coupled to the side sill outer panel;
• a second wall portion, wherein the second wall portion extends from the first wall portion away from the side sill outer panel toward the side sill inner panel;
• a third wall portion, wherein the third wall portion extends from the first wall portion away from the side sill outer panel toward the side sill inner panel;
• a fourth wall portion, wherein the fourth wall portion extends from the third wall portion;
• a first flange, wherein the first flange extends from the second wall portion and the first flange is coupled to the side sill inner panel;
• and
• a second flange, wherein the second flange extends from the fourth wall portion and the second flange is coupled to the side sill inner panel.