Im having the front wheels running 10 degree negative camber and the rear at 7 degrees camber and I wouldn't find it safe at all if I started to modify the tyres especially if they are spinning around at 40mph on a odd camber. I would like find some Michelin tyres for sure.
This is another picture of side of the car but with the components and my body. See how little room I have around my body and that picture doesn't include my arms or the steering handlebar.
I really can't raise the cockpit opening up too much as you can see, maybe only 10mm or so. I might put a lip around the front of the opening but I'm trying to use the airflow that goes into the cockpit more effectively which is why I got the two drainage channels as mentioned earlier in the thread as well as some cooling ducts which will be behind the shoulders that will help keep the motor at a reasonable temperature. Adding the lip will try throw the air over but they will mostly increase the size of the rear wake and have a bigger low pressure area in the cockpit.
As for the A arms or any suspension, it will be difficult to keep the steering geometry and linkages all correct with the camber, caster, kingpin angle, scrub radius etc to ensure that the tyres doesn't wear quickly and have good, stable steering.
Plus any travel in the wheels will mean a bigger bodywork so the wheels will only be solidly mounted to the chassis.
The flex in the chassis will only be in between the front wheels and the back wheels. In order to keep the ground clearance as high as possible, the material that I will be sitting on will be quite thin and the rest of the chassis will be thicker to carry the load. The aerodynamics is a major part of the car's performance and will take first priority on how I will be making the car, most likely will be laminated sheet material and whatever flex there is in the end, I will take. Most of the cars out there including my previous ones have a quite stiff chassis anyway to make sure the driver is well protected in either a head on or a T-bone crash.
Yeah you can have fairings for the mirror, for the previous cars I didn't have the time to make some mirror fairings out of foam or 3D printed or vacuum formed, but will try for this car. Some teams has cheekily put the mirrors inside the cockpit, which basically renders them useless but does remove them from the airflow. I prefer to put them on the top as I like to see what cars are coming up behind despite the aero penalty although I would like to be driving off in the distance
