Material: PVC&PC, Product Weight: Approx.260g, Product Size: About 480mm*195*110mm, Color: Blue/Green/Silver/Transparent, Item Brand: RGT, Compatible Models: RGT 18100 1/10 rc car vehicle model, Item Number: R86297-1 /R86297-2 /R86297-3 and P86298, Item Name: Body shell.
Just check coupons out (with price alert and history). You probably want to know what is the best price?
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 price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($20.27): BG87a605
2. ($35.87): BGMatt2022
3. ($35.87): BGToys8
4. ($35.87): BG8OFFCOUPON
5. ($35.87): TTBLACK5
you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGaa2718, Cuponation9, BGGutscheine
(these coupons are old, so probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for RGT 18100 1/10 RC Car Spare Body Shell. The lowest price was: $20.27.
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)).