Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
Coupon (67.75 USD): BG1eef16
(CouponsFromChina.com tip: just apply this code 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): BGb07c3e, BGMatt2022, BGMARCHSALE, BGAUGUST8, BG805e97
(there’s a little possibility that old coupon will work)
Price history and price alert
Here is price history (for all/most countries) for MNR/C MN68 RTR 1/16 RWD RC Car with 2 Batteries.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).