The California Look has changed during the 30+ years of its lifespan. The most typical (and traditional) way to customise the exterior is to change the wheels and lower the suspension of the car. The favorite wheels are period-style EMPI 5- or 8-spokes, Speedwell BRMs, or Porsche factory rims like Fuchs from a classic 911. One of the original California Look modifications is to replace or remove the bumpers and trim, either to give a cleaner look or to reduce the curb weight; if bumpers are removed, pushbars are common. The stock bumpers are usually chromed or polished, sometimes painted or powdercoated. There are many clubs dedicated to 'Cal Look' including the DKP in the USA which was one of the first clubs dedicated to true 'Cal Look' cars. Today, the DKP still exists and the club is on their 3rd generation. There are also currently many big 'Cal Look' VW clubs based in Europe including the DAS (Das Autobahn Scrapers) in Belgium, the DFL (Der Fieser Luftkühlers) in Germany and the JG54 Grünherz (Greenhearts) in the UK.
Also, body kits are available, which are often derived from the styling of the Porsche 911. This is the only car designed before World War II to have a bodykit commercially available, though Beetles with them shouldn't be considered Cal lookers.