Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
2.4G 4WD 1/18 Scale 50km/h Short Course
Banggood
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): TTxBG10, KevinTalbot, BGWL10, AFfbG10, BG16OF18, BG2828, 502C6B, BGBFAFF2019, BGCITYADS2019, BGWL1258, BGMPB2020, BGAFF10OFF, bGhOnEy10, BGWL9166, BG916ERT, BGdragonBoat, BG916GHJ, BGSS10%SW, bgshOOp10, BGRC902, BgoFErTaSchInA10, BgcLuBofErtA10, BGCuponation10, BGDAVIS, BG39a456, BGHONEY2110, BG7d3de6, BGVehicle10, BGVehicles10, CouponsDE
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Wltoys A969 RC Truck [EU] ($-3)
Price history and price alert
Price history (for all/most countries) for Wltoys A969 RC Truck is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).
. There’s only 1 record in my database, so I have no idea if the price is OK. There is one coupon available! Pretty cool, huh?