The difference between 1899(blue and silver color) and A99(black color)1.1899 car is built in gyro,A99 car do not have gyro2.1899 car chassis is high-tenacity nylon chassis,A99 car is ABS plastic chassis3.1899 car is metal drive shaft,A99 car is plastic drive shaft4.1899 car has ...The difference between 1899(blue and silver color) and A99(black color)1.1899 car is built in gyro,A99 car do not have gyro2.1899 car chassis is high-tenacity nylon chassis,A99 car is ABS plastic chassis3.1899 car is metal drive shaft,A99 car is plastic drive shaft4.1899 car has tail wing,A99 car do not have tail wing5. Remote controller,package box are different6.1899 has headlight/brake light/front rear steering light/backward light,A99 only has headlight - Description:Basic information - Brand:LDR/CItem No:1899/A99Scale:1/18Color:Blue,silver,black - Max Speed:10km/h - Power System - ESC:10A esc speed controller - Motor:150 brushed high speed motor - Servo:9g plastic gear servoTransmitterFrequency:2.4GChannel:3CHRemote Distance:20m - Required Battery:2X 1.25V AAA battery(not included)Battery - Battery for the Car:7.4V 500m - Ah Li-ion battery(included)Battery Charging Time:About 120 minutes - Battery Playing Time:Approx.20-30 minutesOtherMaterial:ABS,nylon and electronic partsDimensionCar Size:23*11*10cm - Box Size:29*1