The armored cars. AB-41, 232 8-rad, M8 Greyhound, BA-64, Humber Mk IV, Panhard 178

[clackers]

while France had colonial interests to worry about?

I think that's also why France developed a lot of half-tracks, too, Gunnut ... a Citroen expedition crossed the Sahara in 1923, some more did a 28,000 km journey across Africa in 1925, and then Beirut to Beijing in 1932.

[BD1]

AB-41 had probably the coolest Spyder version ever built, the AS-42 Sahariana.