Wltoys 10428-B2 RC Car RTR (Banggood, Aliexpress: Frequency: 2.4G, Scale: 1/10, Brand: Wltoys, Main color: black, Max speed: 40km/h, Material: PA Car size: 41*24.7*21cm, Using time: about 10minutes, Battery: 4X AA(not included) Battery: 7.4V 2200mAh battery(included), Charging time: about 5hours, Channel: 4CH, Item No: 10428-B2, Box size: 60*27.5*22.5cm, Motor: 540 brushed motor (the best price with coupon)).
You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one great coupon!
Link: Banggood product page
1. ($181.16): BGVehicles10
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BGWL016, AFfbG10, 502C6B, BGBFAFF2019, BGCITYADS2019, BGVDay10%off, BGAFF10OFF, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BGRC902, BgoFErTaSchInA10, BgcLuBofErtA10, BGCuponation10, BGHONEY2110, BGVehicle10, BGddb9dc
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Price history (for all/most countries) for Wltoys 10428-B2 RC Car RTR is here. The lowest price was: $90.89.
Price records source(s): 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)).