Name this part

What do you call the panel that is highlighted in red?

 

Inner fender well

 

or inner fender apron

 

Most just call them inner fenders.

Like these guys

http://www.summitracing.com/search/product-line/goodmark-inner-fenders

 

I believe it is termed a splash apron

 

inner fender well on a protouring Camaro? lol

 

I name it Clyde

 

I was gonna say Lenny, ya beat me to it.

 

Thingamajig

 

Inner fender well also sometimes called a wheelhouse.

 

a gray peice of rounded metal

 

Inner fender (a wheel house is on a boat)