Great to see these improvements. Good progress there, although the weak engine sound and constant clunk of the gears lets it down. I notice sometimes the gear shift sound goes out of sync with the gears shown, so I would just dump the gear sounds and stick with just a roaring engine. Car still looks like it is running on rails, and seems heavy. Very excited by Night mode.
Looking at the Monaco-like images, maybe the car could travel across europe or on a special mission around the world?. All you need is the correct road bollards and sign colours for each country. I am already an expert at this. For example, your desert track could easily be changed to South Africa, if you had black and yellow chevrons and yellow lines on the outer left and right of the road. It could also pass for Turkey, if the Chevrons were red and white, with white and red bollards. Senegal is possible, or Argentina, or I guess Oman or Jordan, with a few small changes. The black and white chevrons are mainly a UK thing. In France and Spain they are blue with white arrows. In Germany and the rest of Europe they are white with red arrows. In parts of South America they are black with yellow arrows. etc