I designed this 1/18 Audi R8 V10 2019 which is a remote controlled (RC) car! The measured topspeed of the car is 38,49 km/h / 23,91 MPH!
 

I made some detailled drawings with all the parts needed to make this car (find the PDF at “Documentation” at the bottom of this page):

I also made a full DIY tutorial video: 

Materials:

The whole car is fully 3D Printed so you will only need the electronics and some bolts and bearings!

Parts you need to buy:
- (2x) M3 Washer
- (2x) M8 Washer
- (1x) GT2 timing Belt - 6mm - closed 158 mm loop:
https://www.123-3d.nl/123-3D-GT2-timing-belt-6-mm-gesloten-158-mm-i2747-t12750.html
- (1x) GT2 Pulley - 6 mm belt - 40 teeth - 8 mm axis:
https://www.123-3d.nl/123-3D-GT2-Pulley-hoge-resolutie-6-mm-riem-40-tanden-8-mm-as-i2570-t14819.html
- (3x) Bearing 608ZZ Ø8-Ø22-7: https://www.123-3d.nl/123-3D-Kogellager-608ZZ-10-stuks-i1406-t15106.html
- (2x) Bearing 623ZZ Ø3-Ø10-4:
https://www.123-3d.nl/123-3D-Kogellager-623ZZ-1-stuk-i18-t13131.html
- (25x) AS 1420 M3x12:
https://www.123-3d.nl/123-3D-Metaalschroef-inbus-M3x12-cilinderkop-verzinkt-50-stuks-i1173-t3122.html
- (23x) AS1420 M3x8:
https://www.123-3d.nl/123-3D-Metaalschroef-inbus-M3x8-cilinderkop-verzinkt-50-stuks-i3078-t3122.html
- (6x) AS 1427 M3x12:
https://www.123-3d.nl/123-3D-Metaalschroef-bolkop-M3x12-mm-verzinkt-50-stuks-i120-t12757.html
- (6x) AS 1427 M3x20:
https://www.123-3d.nl/123-3D-Metaalschroef-bolkop-M3x20-mm-verzinkt-50-stuks-i124-t12757.html
- (3x) AS 1427 M2x8: https://www.123-3d.nl/123-3D-Metaalschroef-bolkop-M2x8-verzinkt-50-stuks-i4739-t16150.html
- (1x) M2 Nut
- (57x) M3 Short Threaded Inserts: Turmberg3D - draadinzetstuk assortiment kort M2.5 / M3 / M4 / M5 (50/50/50/50 stuks) (assortimentsbox kort):
https://www.amazon.de/dp/B09NYMB352?pd_rd_w=busze&content-id=amzn1.sym.995b3ade-87fd-4685-9950-c7995e7b483c&pf_rd_p=995b3ade-87fd-4685-9950-c7995e7b483c&pf_rd_r=2HHZHYYXDFTYR9TG3J1R&pd_rd_wg=R2u2j&pd_rd_r=47f4309b-fef9-41c4-85ea-0dade88d01f8&pd_rd_i=B09NYMB352&psc=1&ref_=pd_bap_d_rp_1_i
- (1x) Transmitter, Receiver, Brushless motor, ESC: https://www.amazon.de/dp/B094VKNYV4/ref=rvi_sccl_5/258-7433489-4408325?pd_rd_w=Q90ZN&content-id=amzn1.sym.22019d9a-e205-410a-b337-2be913e3a486&pf_rd_p=22019d9a-e205-410a-b337-2be913e3a486&pf_rd_r=XW8V7JRH8TXFVCHVVBTZ&pd_rd_wg=FJHgW&pd_rd_r=2ed46812-332c-48e1-b354-76221d079822&pd_rd_i=B094VKNYV4&psc=1
- Only motor and ESC: https://www.amazon.de/-/nl/dp/B08H4MGXQ9/?_encoding=UTF8&pd_rd_w=cTBUi&content-id=amzn1.sym.0bf9ab1e-db90-4058-8c91-2e3e5b4712b7&pf_rd_p=0bf9ab1e-db90-4058-8c91-2e3e5b4712b7&pf_rd_r=GJ0AX6A1RVPXACBT7ETZ&pd_rd_wg=HCtNs&pd_rd_r=a2f207e2-4e52-475f-93e1-802f8a405ec8&ref_=pd_gw_ci_mcx_mr_hp_atf_m
- (1x) 7,4V Li-ion battery: https://www.amazon.de/gp/product/B088867426/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1
- (1x) T-plug connector:
https://www.amazon.de/gp/product/B076WWWTH6/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
- (1x) FS90 Servo (120°):
https://www.gotron.be/analog-micro-servo-1-3kg-cm-120-rotation.html
- (1x) Fan 30x30mm):
https://www.gotron.be/30-x-30-mm-ventilator-voor-het-koelen-van-raspberry-pi.html
- (1x) Slide switch: https://www.gotron.be/schuifschakelaar-dubbelpolig-on-on-0-5a-125vac-dpdt.html
- Heat shrink tubing set:
https://www.gotron.be/set-thermische-krimpkous-10cm-170-pcs-gekleurd.html

Total price of Electronics and Mechanics is about €157.
Total price of filament is about €7,56
Total Weight of the car: 785 gram

3D printing settings

Printsettings PLA:
- 0,16 mm Layer height
- 0,2 mm First Layer
- 3 Top -and bottomlayers
- 3 Walls
- 25% Infill
- 55 mm/s

Printsettings PETG:
- 0,1 mm Layer height
- 0,16 mm First Layer
- 3 Top -and bottomlayers
- 3 Walls
- 50% Infill
- 45 mm/s
- Brim

Printsettings TPU:
- 0,1 mm Layer height
- 0,16 mm First Layer
- 3 Top -and bottomlayers
- 3 Walls
- 25% Infill
- 30 mm/s