Talk about the your favorite Ghostbusters Collectibles from Mattel, Kenner, and more.
#4988755
Certainly not official MicroMachines versions. They haven't really added to their range since the late 90s!

I think the closest to an Ecto you'd find would be the '59 Cadillac Limousine but would need modifying.
Image

You'd probably be better off making a mini one yourself by 3d printing something in resin and attaching it to a preexisting chassis. I'm sure if you googled for an "N scale" Miller meteor you'd find one. Or simply scale down a larger model to 1:160.
VenomSymbiote, Kingpin liked this

    https://i.imgur.com/C1RWAfU.jpg https://i.imgur[…]

    ALICE Frame straps and reinforcement

    I kept having the quick release on the strap come […]

    Here's the full get up with some of the South Caro[…]

    They stated it again at the very end of the stream[…]