From what little I've seen of Carranger, it doesn't seem as wacky as people make it out to be.
As a Carranger enthusiast, I have to say you're dead wrong. Carranger is not just comedy, it is pure genre satire. Carranger is a
wonderfully written show, possibly the most tightly-scripted Super Sentai I've yet seen.
Carranger is never mean-spirited in the way it flays the tropes of Super Sentai as they existed at the time, but they are still soundly flayed. Signalman does a number on Space Sheriff that's just astounding.
In Carranger, Signalman gives Red Racer a speeding ticket in his first appearance, then goes to stand in a police box like the real, unexciting sort of Japanese cop. The monsters grow enormous by eating sweet potato candy,
but only the good kind from a real candy store. The aliens are invading Earth almost purely to impress a slutty barmaid.
It's glorious.
The Haroranger subs do not do the scripting in Carranger justice. If you ever have a chance to dig up the old VHS Ctenosaur subs, they do a much better job of reflecting the snappy, funny dialog. The Haroranger subs seem to totally miss gags like the aliens not being able to pronounce "chikyuu" correctly.
Kakuranger and Carranger is an interesting comparison, but Carranger has a core of solid satire driving its comedy that Kakuranger doesn't. When Kakuranger is weird or zany, it's never to any particular end, and it drops the comedy when it's time for action. Kakuranger also, on the whole, is cheaper and less creative with its comedy. Jokes in Kakuranger are jokes you'd see in any random anime made at the time. Jokes in Carranger are pretty much jokes you'd only see in Carranger.
In Carranger, almost everything save the big process stock footage moments is not only played for comedy, but usually to specifically parody things about tokusatsu tropes as they existed at the time. Everything from the characters to the situation is completely absurd and hilarious. As far as I know, Carranger never stops the satire, either.
Goseiger's Epic 8 verged on outright satire of how modern Super Sentai power-up episodes tend to go and how absurd the power-ups tend to be, but didn't quite make it. It got unfortunately straight-faced and standard toward the end of the battle, presenting Exotic Gosei Great as something actually cool. The way Carranger would've handled it, Exotic Gosei Great would've been treated as something flagrantly stupid (yet powerful) that only Alata could take seriously. The rest of the team would've remained totally embarrassed to have ever piloted it.