front end ground clearance...

I think they are both about the same as your vette.

 

The 348 is damn low at the front. I have to navigate my neighbours driveway to get my 348 out onto the street as it scrapes on my own driveway. DUH!

 

had a much lower than stock vette and a lowered 348, 348 is worse by all accounts.

 

You will most likely scrape it somewhere... don't ask.

 

At some point in time, it will get scraped. Sucks, but sometimes unavoidable. I can't believe the way some driveways or intersections are made!
Only once have I scraped a visible part of the bumper though, and it was my fault for not paying attention. What mostly scrapes is the flat section on either side ahead of the front tires.

 

6.75" off the cement, 25" from tip of nose to front of front tire. That's on a '95 348 Spider. Click avatar to view. Yeah, I consider it a BIG problem. Have to enter my driveway amost parallel, then cut in. Have scrubbed the nose several times. Am very attentive to intersections now (knocked a 3" piece of Fiberglas off underside of nose) and driveways. Have just had nose repaired and some other minor paint chips, $950.

He installed skid pads too.

 

My 97 355 spider seems to be a little lower. It's about 5.25 inches off the ground at 25 inches away from the front tire. I'm not sure why mine is lower, but I was kind of curious so I measured. I also measured from the bottom of the aluminum skid plates, which seem to work great. The good thing about the aluminum ones are that they don't make any noise when you scrape them.
Someone else with a 355 measure and see if they find it the same.

 

Less than an SUV so don't go launching yourself up ramps and speed bumps as my brother discovered...

And no, as you can see, the skid plates did not save me.
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Ouch. Actually, the skid plates probably make it worse for anything other than a minor scrape.

In the 328, I just avoid any driveways/aprons that aren't flat.

 

Skid plates seem to make it scrape more often since they reduce clearance, although only slightly. But at least they can take a bit more abuse.

As much as I try to avoid stupid driveways, sometimes they're simply unavoidable. Going into a business center or store parking lot with a bunch of traffic behind you, and all of a sudden you realize the entrance is too steep. No way around it, and one must just find the best approach to keep scrapes to a minimum.
I really don't understand how some driveways get approved. Being involved in RE development, I would throw a fit if someone tried to build something steep on one of my projects. What's worse is those intersections where there's a huge dip on each side and cars are expected to go through at 35+ mph! Absurd, as even "normal" cars leave huge gouges in the asphalt. Ahhh, this issue really bothers me.

 

My skid plates scrape every once in a while on the 355 that i just got. Unfortunately, I scraped the bottom of the front air dam slightly on a driveway entrance. Its only a few scratches. I tried some color wax to disguise it but they still show. I don't man to highjack your thread but I would appreciate any suggestions on how to repair this type of scrape without major body work?

 

The black air dam for the front radiator on my 1995 Corvette convertible scraped a lot!

I've got 13 CM clearance on my 348, though.

You've actually got several options with these cars. The 348's height is fully adjustable, so you can raise it manually for city driving and lower it when you are at the track.

Larger diameter wheels and/or higher profile tires likewise help. This is especially useful if you have one set of track tires and a different set of street tires.

The only skid pads that I'd recommend would either be rubber (to help absord impact) or wheeled...otherwise you are lowering your car instead of protecting it.

 

Exactly!! They hang down an extra 3/8"!!

 

You're going to scrape and maybe crack it at some point if you drive the car at all, so put it in your mind that you will have it repainted and/or fixed every couple of years.

I just got my 355 beautifully repainted, and the front spoiler is already full of scratches underneath - I'm as careful as I can be, but it still happens

 

I am usually very cautious when pulling into parking lots and driveways but wasnt paying complete attention the other day when I pulled into a parking spot and scraped the front on the concrete.

 

Tip 1: Kick the passenger out first.
Tip 2: Always take a slope at the most severe angle you can.
Tip 3: Go slow and listen for scraping sound; when u hear it, stop. Slowing further isn't gonna make it stop.
Tip 4: If you can enter without scraping, then back out the same way.
Tip 5: Keep the passenger out of the car until you are on level pavement.
Tip 6: If you suspect a dip in the road to be scrape-worthy, slow down and treat it like a curb or driveway.
Tip 7: It is much safer to enter an upslope nose first and back down it; similarly, a downslope is easier if u back down it and exit nose first.
Tip 8: Scout out a gas station before needing one with either minimal or no curb slope and use only it.
Tip 9: Start saving now for a chin spoiler repaint because you are going to need one eventually.
Tip 10: Never park nose in against a curb, especially down slope, or let a valet do it for you; also, don't parallel park where where there is room in front of your car for another.

 

Great advice Vince !! Now when are we going for an f-car run with Plugzit ??