Artikelnummer geht natürlich auch: 
[{assign var="oBasket" value=$oView->getBasket()}]
[{assign var="cnt" value=0}]
[{assign var="sum" value=$oBasket->getContents()|@count}]
[{foreach from=$oBasket->getContents() item=oBasketItem }]
[{assign var="oArticle" value=$oBasketItem->getArticle()}]
[{$oArticle->oxarticles__oxartnum->value }]
[{assign var="cnt" value=$cnt+1}]
[{if $cnt < $sum}],[{/if}]
[{/foreach}]