​If you are looking to collect and race Siku cars, it's important to acquire the right cars.   The ones with whitewall/deep dish tires released in the 1980's should be the focus.  These wheels react really well to graphite and combined with the larger size (mostly 1:55 scale) and nice weight, makes the cars really fast.  

I went through the Siku Museum Database and queried for any of the targeted wheel types and also looked on Ebay and other auction sites to see if there were others that might be out there.  The whitewall/deep dish tires are designated as B04 in the Siku database.  Note that the B05 and R11 wheel types are similar looking.

My assessment shows that there are 48 unique car models.  A few of them share a common chasis (e.g. Porsche 911 Turbo and Porsche 911 Cabrio), but have different bodies so I'm counting them as distinct.  Almost all of the models have several color variations and several have police (Polizei), fire (Feuerwehr) or emergency services (Notartz) versions.

Siku buying warnings;

• Some of the cars are too wide for the standard orange track, see the grid below
• Important if you're purchasing these loose, is to avoid those with rust on the wheels.  Need the wheels to be free.
• There are similar looking wheels (classified as B05 and R11 by Siku) that have the whitewall tires, but are not deep dish (aka flat), so be aware.  
• Some of the castings below also have versions without the targeted wheels, so look closely at the tires when buying.

Siku Inventory
Whitewall/Deep Dish Wheel Models

​Thanks to my diecast friend Markus from Germany, who's been a great advocate of this site.   He provided more information on the weights of various Siku cars and also motivated me to seek out more of these great cars.  

Note that the weights for a model may vary slightly based on random factors or the features of the car