Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. Only one coupon available!
Link: Banggood product page
Coupon (51.86 USD): Cuponation9
(CouponsFromChina.com tip: put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG5bfe25, BGVehicle10, BGVehicles10, BGRCT10, BGJUNEGSG9, DealBGimpact, BG608d0f, BGde6474
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Price history (for all/most countries) for F1 F2 1/14 RC Car RTR is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).