Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
Coupon (46.79 USD): AFfbG10
(CouponsFromChina.com tip: apply it in your 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): TTxBG10, BGss9%rc, bgssaff9, BGNP215, 502C6B, BGBFAFF2019
(there’s a little possibility that old coupon will work)
Price history and price alert
Check out price history chart (for all/most countries) for CaDA C51043W All-terrain Vehicle.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).