Fire engine drawings?

[ItsNiceItsDifferentItsUnusual]

Am doing ds's room, who is obsessed with fire engines. I'd love to find a line drawing of one, either in colour or b/w, but am having real trouble. I'd ideally like something not too cartoony. NOTHS have this but it's probably erring on the cartoon and i'd like something that is a bit more grown up.

Any advice very welcome! I've done much googling but can't find anything quite right.

[justaweeone]

https://www.etsy.com/uk/market/firetruckart

[justaweeone]

https://www.zazzle.co.uk/fire+truck+art

[justaweeone]

http://picclick.co.uk/Firetruck-Art-Prints-Vintage-Fire-Truck-Children-Kids-282283596208.html