I am Spanish. It says that according to Mario Canseco, McLaren will "take to Austria": new sidepods, floor, "inferior and lateral deflectors", engine cover and rear wing... it doesn't end with a dot, which suggests that there are more changes than that.
Now for the language subtleties. "llevar" a Austria means literally to take to the country, it might be the race, but it could also be the tests. Es for the lateral and "inferior" (read lower) deflectors, that smells of bargeboards, at least the lateral ones, but the lower ones... not sure what that is supposed to be. No mention of diffusers.