Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (127.40 USD): Terence
Coupon (127.40 USD): 2203ActiesNL
Coupon (128.77 USD): BG00c906
(CouponsFromChina.com tip: coupon code has to be applied in shop’s cart 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): BGRE995, AFfbG10, BGRE35MO, 502C6B, BGREMOHB, BG152EDC, BGBFAFF2019, BGCITYADS2019, Email5, BG1584WE, BGVDay10%off, BG326RE, BGAFF10OFF, bGhOnEy10, BGdragonBoat, BGSS10%SW, BG1528MKJ, bgshOOp10, BGRC902, BgoFErTaSchInA10, BgcLuBofErtA10, BG11PP12, BGCuponation10, BGDAVIS, BGHONEY2110, BGVehicle10, BGVehicles10, BG10Vehicl, BG10RCVE, ADMITAD2212, BGCityadsRC, Tabby20
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for REMO 1635 RC Car is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).