As I mentioned at the meeting last night quite a few cars got moved to a different stock class for 2010. Essentially several classes got moved down a letter to make room for a new class in between the current SS and AS. Note these changes apply only to stock class cars, street prepared, street mod, street touring, etc cars are not affected.

Super Stock - The faster SS cars stay while the slower ones get moved down to form their own class.

A Stock - This is the "new" class that was created. It has the following cars that were moved down from SS.

BMW
M3 (‘08-‘10)
Z4 M Coupe/Roadster (‘06-‘08)

Chevrolet
Corvette (‘97-‘04, C5 chassis, non-Z06)

Lexus
IS-F (‘08-‘10)

Lotus
Esprit Turbo (‘96-‘04)

Mazda
RX-7 (‘93-‘95)

Mercedes
C63 AMG

Porsche
911 (‘98-‘04, 996 chassis)
Boxster S (‘05-‘08)
Cayman S (‘05-‘08)

B Stock - All cars that used to be in AS. Basically the same class, just a different letter.

C Stock - This class is a combnation of the old CS cars plus all the old BS. Additionally the '97-'04 Porsche Boxster (986 chassis, non S) was added.

D Stock - Same as 2009 only with addition of the Mini Cooper S (all years).

E Stock - No changes

F Stock - No changes

G Stock - Same as 2009 only now without the Mini.

H Stock - Adds Ford Focus SVT and slower Acura Integra's but otherwise the same.

Post any classing questions you have and I'll try to clear them up for you.

There is also a new Street Touring class for 2010 called STR. This is a Street Touring class so you must run on street tires and the usual ST class mods are allowed (basically most bolt on parts). The specifications for the class are as follows:

Street Touring Class R (STR)

Class requirements and restrictions:

- Only those cars listed below are eligible

Eligible vehicles are:

- Honda S2000
- Mazda Miata (except Mazdaspeed)
- Mazda MX5 Miata (’06-‘09)
- Toyota MR2 (non S/C, non-turbo)
- Toyota MR2 Spyder
- BMW Z3 (non-M)
- BMW Z4 (non-M, non-turbo)
- BMW M Coupe & M Roadster (1998 to 2000)
- Mazda RX7 (non-turbo)
- Porsche 924 & 944 (non-turbo)
- Porsche 911 (1984 to 1989 Carrera 3.2)
- Porsche 968
- Pontiac Solstice (non-turbo)
- Saturn Sky (non-turbo)
- Datsun 240Z & 260Z & 280Z & 280ZX (non-turbo)
- Nissan 350Z

Additional class notes include:

- Tire Allowances

AWD – 225mm
2WD – 255mm

- Wheel Allowances

AWD – 7.5”
2WD – 9”

- Catalytic Converters

Same as ST, STS allowance.

- Limited Slip Differentials

Aftermarkets units allowed per STX/STU rules.

The new A Stock looks interesting. I bet the RX-7s & Z51 C5s will be the top dogs...

Thx for posting this, Jason

2004 996 Anniversary Edition 345hp with LSD will also be a contender.


Peter

I'll take the Boxster S, of course!

Thanks from me as well Jason!