Chevrolet 2002 Corvette Owner's Manual page 49

If your vehicle is a convertible or has a removable
roof panel, don't use a child restraint that requires a
top strap in your vehicle because the strap cannot be
anchored properly.
Once you have the top strap anchored, you'll be
ready to secure the child restraint itself. Tighten the
top strap when and as the child restraint manufacturer's
instructions say.
If your vehicle is a Z06, an anchor bracket for a top
strap is located behind the passenger's seat in the
cargo area. Anchor the top strap to the bracket.
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