Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. CouponsFromChina software could not find any coupon for this product in Banggood.
Link: Banggood product page
Price: -3 USD
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): BG4d2061, BGVehicle10, BGb0f9cc, BG919a54, BGVehicles10, BG670ef8, BG15560a, BG10Vehicl, BG10RCVE, BG12RCCA, BGEachine10, BGRCEachine, Tabby20, BGefbf78, BG65606f, BG5e5710, BG97c9db, BG39be66, BG2207a9, BG1ba9ab
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Here is price history (for all/most countries) for Eachine FMS RC12002 RTR RC Car with 2 Batteries.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).