My pull request that backported unified Xen executables was merged into Qubes for the upcoming 4.1 release. This will make it possible to enable UEFI SecureBoot on a stock Qubes install (with a bit of additional glue that is yet to be written) https://github.com/QubesOS/qubes-vmm-xen/pull/89
The interior has everything: Barbie as train engineer, electronic moving window scenery, a cafe car with rolling bar cart and hot waiter, and a sleeper car with bunk beds, a baby and mirror vanity.