English is not my first language but I usually do VEE-ick-uhl, ocassionally adding the h almost as a glottal stop. Though as someone else wrote earlier, for “vehicular” I do pronounce the h. I take it to be a result of when in life I learned to use the English words.
Preferred: Ides of march. VEE ick el
Being funny, Chevy Van, slow this vee HICK el down
Mine is ve-[ic]-u-low since that is the understood term in my Spanish neighborhood.
I go with via-cul.
VEE-i(h)-cull.
Midwestern U.S. The h is pretty close to silent.
Unless you’re in Boston, in which case it’s caaah.
As long as I say “vehicular” and not “veicular” I’m going to put a slight H in there, I think.
How do you pronounce VEHICLE?
“Bob”.
I say “vee-HIC-you-lar,” but don’t say “VEE-hih-cull.” YMMV, clearly. 
Like final "g"s?
I am in central Arkansas. Pronouncing the H in vehicle is a US Southern accent.
Rural Virginia here, vee-hic-cul.
I put a glottal stop /ʔ/ instead of a glottal fricative /h/ between the vowels. That’s the consonant before the final vowel in “Hawaii” /hɑwɑɪʔi/ and the consonant in “uh-uh” /əʔə/.
As I said above, I pronounce the H, and I’m from South Dakota originally, a Wyoming transplant now… Of course, I was a voracious reader more than a talker as a kid, so several of my pronunciations might stem from “read it well before I heard it said.”
English is my first (and mostly only) language, and I pronounce both word the same as you do. I think it’s all about which syllable has the stress. It makes sense that if you were to stress the second syllable in “vehicle” that you would pronounce the “h” vee-HICK-le".
It’s Vee (audible breath) icle. I don’t actually “voice” the H, but there’s an audible sound that occupies that space.
That is the glottal stop.
Your profile shows Wyoming as your location. Are you a native from there?
As I said earlier, I grew up in Salt Lake City, and there are similarities in the accents.
Granted, it’s an exception, but nobody pronounces the final g’s, assuming you’re talking about "ing"s —
Walkin’, talkin’, playin’, just sayin’… the people who say walking, talking, playing, and saying, they aren’t pronouncing an actual g either, the “ng” combo is treated as a nasalization of the n. There’s no actual “g” sound. Nobody says Walkinguh, talkinguh, etc…
Welllll… ok there are Long Islanders who do indeed say Lawn Guyland, I suppose that makes them an exception in the other direction.
Canadian here. I don’t discard the “H” sound, but it’s only mildly enunciated. There’s a subtle but distinct difference between a soft “H” and none at all.
Canadian also, and I agree with @wolfpup . The H is there, but barely pronounced.