Basically copy coupon, view price history or create e-mail price alert. What is 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 price update (UTC time):
35km/h+ Maximum Speed, 1kg High-torque Servo, 7.4V 1500mAh LiPo
Price history and price alert
Check out price history chart (for all/most countries) for JJRC Q39 Highlander RC Truck [Fast-08].
Price records source(s): Gearbest
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)).