There are not really any all encompassing brush kits. There are just so many different applications.
What particular areas are you looking to clean?
My new favorite interior/exterior brush is a 1" round paint brush with synthetic(polyester I think) bristles. It's soft enough not to scratch yet stiff enough not to be flimsy and cleans well. It also works well for cleaning the outer portion of heater vents.
The one I have is a Zibra 1-Inch Round Trim Paint Brush.
Many people use a one inch boars hair bush like this for similar tasks.
Wheel Woolies Boar’s Hair Detail Brush 1 inch
I just picked up these this Wheel Woolies brush kit. They all seem nice and soft and I think the little one will come in handy.
Wheel Woolies Car Detailing Brushes
This style is nice for wheel faces.
Boar's Hair Wheel Brush
Tire & Wheel Brushes
I like this for lug nut recesses if they are dirty. They are a little stiff though. A gentler way would be to use 1" brush like listed above.
Professional Lug Nut Brush, auto lug nut brush, wheel cleaning lug nut brush
I use this style for spoke clean up.
Mothers Brake Dust Brush removes brake dust from wheels without scratching the metal finish. Soft bristles are safe on all wheels when used with
Laitner Grip-It Two Loop Wheel Brush, spoke wheel brush, round wheel brush
My favorite carpet cleaning brushes, besides a good old regular medium stiff scrub brush, is a brush like this for getting into all the tight areas around seats to aid while vacuuming. I found mine in a pack at an auto parts store, if I ever find them again i will definitely but more. Both are big tooth brush style and have fairly stiff bristles. One has a very low profile, like a tooth brush and the other has more of bent scrub brush style handle.
These are kinda similar
Mothers Detail Brush Set cleans crevices and creases inside your car. Mother Detail Brush Set includes 2 small brushes.
Various other regular scrub brushes in varying sizes from stiff to soft for use on tires, carpet, upholstery, vinyl, and leather.