solar powered brushless motor for rc car

I'm planning to build a solar powered RC car. I have decided to build the solar panel on my own. I used 8 6x6 solar cells with 4,2 watt each. As brushless motors are far more efficient as other motors, I went for the following components of the power drive:

•  8x solar cells 6x6 inch with a total of 
• 2x gold cap 22F condensators
• 1x step up module
• 1x 8 Ampere brushless ESC
• 1x brushless motor

The hardest part was to tab the 6x6 solar cells. Here is a short tutorial:

diy solar panel:

power drive and solar panel:

As shown on the pic, the solar panel delivers 4,58 Volt (it was cloudy!). In order to power a brushless motor, I have used a step up module (small red module next to the 2 gold caps).

Test run: