My first RC Tank was Tamiya's Leopard from around 1987. It went forward & backwards, left & right and had one speed using a servo driven mechanical switch and a clutch for each motor and no other functions.
I've just finished the Coolbank Valentine mk iii & I'm truly amazed by the detail & functionality. I bought the camouflage varient and just did a minor touch up on the paintwork. I did replace the hose from the auxiliary fuel tank, which was actually quite narrow. Coolbanks "rubber" hose is way outa scale. I had to give the motor for the smoker a tap as it had stopped, so having opened her up have an idea for some improvements, also think a "commander" might look cool. I think I may be hooked as the Tongede Churchill is arriving in about 2 weeks
I'm looking into an airbrush as I think the Churchill will need some painting & detailing to look more realistic. I remember building the 1/76 Airfix version when I was about 10 years old ...all those tiny wheels and soft plastic tracks which reacted with the styrene of the wheels after a year or so to form a sticky mess! I believe it cost 2 shillings & six pence ...that's 12.5 pence or 15 cents. Enough reminiscing lol