I am one of four,
my anagram could be the floor.
My abbreviation is number five,
overall, I am where you can drive.
What am I?
Could you be
East
I am one of four,
One of four directions
my anagram could be the floor.
Seat
My abbreviation is number five,
E, E is the 5th letter
overall, I am where you can drive
You can drive Eastward. Like in the direction of East...
CARPET.
I am one of four,
The four main types of flooring are:
Timber (that includes hardwood, laminate, bamboo and vinyl);
Stone (particularly polished, i.e. granite, marble, tile);
Cork; and
Carpet.
There are also the four most common pets (from carpet): dogs, cats, fish and birds; though for some reason, rabbits are currently becoming popular :P
My anagram could be the floor.
Ehhh, not really its anagram, but more of its definition...
My abbreviation is number five,
The abbreviation of CARPET can be CP which also stands for Chest Pain. There are five main deadly causes of chest pain${}^1$ apart from myocardial infarction (i.e. a heart attack), as that is more of heart pain which only causes chest pain because of where the heart is (significantly different).
${}^1$The link might prove to be disturbing, so beware.
Overall, I am where you can drive.
CARPET.
What am I?
CARPET?