When I was updating this page, then coupon price was $358.99 for ZD Racing 9021-V3 RC Car RTR Black (in Banggood). Just check coupons out (with price alert and history). Best price?
Hex Adapter 17mm, Scale: 1/8, Wheelbase: 370mm, Frequency: 2.4G, Diameter: 145mm, you can upgrade the car battery to 6s, Total Gear Ratio: 12.95: 1, Servo: 9kg large torque servo, Control Distance: ≥400m Car Battery: 11.1v 5000mAh 3S lipo Battery(included), Designed Speed: 80+km/h ESC: 120A Brushless Sensorless esc, Box Size: 55*43*21cm, Channel: 4CH, Item No: 9021-V3, Motor: KB4068 2000KV Brushless Sensorless motor, Tread: 270mm, Width: 69mm, Hub Inner Diameter 87mm, then it can up to 110km/h Car Size: 550*430*205mm, Ground Clearance: 80mm, Tires: , About the speed, Brand: ZD Racing, Color: As the picture shown
Latest price update (UTC time):
Banggood ($358.99)
Banggood warehouse is located in China. Is it cheap? From what I can see this price is higher than average price ($326.68). Only one coupon available!
Link: Banggood product page
Price without coupon: $386.99
1. ($358.99): BG875ef3
this code has to be applied 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/5cd
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
1. (24.11.2023, $338.99): BG23BFPL137
Item: ZD Racing 9021-V3 RC Car RTR Black
Countries: Greece, Poland, Romania
Old coupons (from the oldest to the newest): BG9021V3, AFfbG10, BGAFF10OFF, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BGRC902, BgoFErTaSchInA10, BgcLuBofErtA10, BGCuponation10, BGZDRC, 7bcdf9, BGDAVIS, BGHONEY2110, BGVehicle10, BGVehicles10, BGPL9021, BG9021, CouponsDE, BG00c906, ADMITAD2212, BGCityadsRC, Terence, Tabby20, 2203ActiesNL, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, BG67a3bb, 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, hoNEYbGdeAlS, BGRCT10, BGJUNEGSG9, BG8ReviTrage, Cuponation9, BG670ad1, BgGoodie9, BG36c720, BG82b8fd, BGToys8, BGSaleFeb8, BGSaleAD, BGMatt2022, BGMARCHSALE, BG589b2e, BGAUGUST8, BGCAPITALOS8, BGCOUPERT8, BG9e7da9, BG5RCCar, BGd7b788, BGRCCar5
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – ZD Racing 9021-V3 RC Car RTR Black [EU] ($-3)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for ZD Racing 9021-V3 RC Car RTR Black.
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)).