The car is good...really. Since it could be a great work, let me give some suggestions:
make smaller the width of Pitot base ( it seems a little too large in the last screen);
make a 3d airscoop ( if it's 2d, like resembles );
make 3d grills, if they are, like resemble, 2d ( not essential...but car should be more realistic );
make just a little narrower the nosecone...it seems too large ( see the distance between nosecone attacks on frontwings, to realize this particular );
make a little more consistent ( larger ) nosecone attacks, since they are too thin;
make more distance between the 2 front wings plates...seeing the screen, one should think they are too close, or attached;
body driver, at level of the chest, is too flat ( see the logo "Petronas" )...make a little more round it, to be this part anatomical.....and paint seat belts, of course ( but screen is W,I.P., I know ).
I'm sure this car will be a good GP4 update. Go on, mates.