Don't you just love that smell?? My sons 96 Hyundai cent smells like that all the time when it warms up and I smell it in my 98 EB every once in a while too. I think it's a small oil leak somewhere, dripping onto the exhaust, but, not enough to drip onto the ground. I haven't had the time to check mine out yet, too cold outside.
Let us know if you find it.