Christian and co-presenter Mark Walker visit the impressive HS2 station and viaduct construction sites in central Birmingham to see how the project is transforming the city's connectivity and skyline [1:30].  They also discuss the latest twists in the UK's roadspace culture wars including the insane conspiracy theories around '15-minute cities' [20:48].  Finally, Christian asks whether the classic car business is receiving disproportionate attention from the UK Department for Transport [31:02].