Kellan Lutz SICK Lambo 'I Got My Twilight Check'

EXCLUSIVE

Kellan Lutz wants everyone to know ... HE'S RICH, BIATCH!!!

The "Twilight" star was rollin' around L.A. this weekend in what appears to be a Lamborghini Murciélago Roadster.

With a big ol' grin on his face, Lutz joked, "I finally got my 'Twilight' check."

FYI -- the 27-year-old has appeared in all 5 of the "Twilight" flicks ... but according to reports, he only made around $1.25 mil for each of the final two movies.