What Gassoon said
And developing a car... most are designed these days as joint operation. And almost always developed from the last outgoing model.
My mrs just bought a Nissan Quashqui 2.0 Turbo Diesel
Made by a Japanese company
Built in Sunderland
Designed In London
Frame is used on the Renault Megane, Scenic, kangoo, Nissan Quashqui, X-trail and Sentra.
Engine was jointly developed buy Renault and Nissan and used in various capacities and the block was made for petrol and diesel options in various models across both ranges.
So yes it costs peanuts per company to design.
But I must admit I bought a 30 year old Jap bike (off a member on here who won't be named) **JUVECU** and after 500 miles it fell apart... but has been neglected by nearly all of it previous 21 owners
And I sit in my cold damp garage, spanner in hand swearing at the thing and when I think of the 500 miles of grins it gave me I still smile, but I wouldn't accept it from a modern bike I wanted to ride every day.
And yes I also admit BMW may knock out a good one now and again, but it's the concerns I have about buying one whether new or second hand is do I get a good one or a friday afternoon special.