Updated ZIL 49061 "Bluebird". Multiple optimisations

Experimental update

Frontal hatch added. Now you can change battery there. (additional battery is on the back of the cabin on engine compartment)
Grab it, replace used one and reconnect it.

Buoyancy slightly decreased.

Added thumbnail

Updated ZIL 49061 "Bluebird".

+ Radar (max range 5 km) added
+ Fuel consumption decreased
+ Brakes reworked
+ Max speed now is somewhat historical and can't exceed 80 kmph

- Engine still overheats after several minutes

+ Major engine performance improvements
+ Fuel consumption decreased
+ Quality of life improvements

- Still lacks many cool things that I've planned

+ Engine improvements
+ Cooling improvements
+ Portable fuel tank and refuelling port inside sealed compartment added

- Engine cooling is still an issue

+ Greatly improved steering

- Engine still overheats (may be a common modular engines problem and will be probably fixed in next patches)

Updated ZIL 49061 "Blue Bird".
Major engine performance improvements
Engine cooling became slightly better
AFR and fuel efficiency improvements
Brakes improvements
Color scheme slightly changed
Minor fixes

Uploaded ZIL 49061 "Blue Bird" to the Workshop.