Hi,
Regarding the variant name displayed on the cart but not on the product page, you can use CSS as explained here:
www.hikashop.com/en/support/documentatio....html#characteristic
Regarding the price of characteristics, there is no option for that as it doesn't work if you have more than one characteristic attached to your product.
You will have to edit the file administrator/components/com_hikashop/types/characteristic.php and change the line:
$values[$k]=$value->characteristic_value;
by:
$currencyHelper = hikashop_get('class.currency');
$values[$k]=$value->characteristic_value.' ('.$currencyHelper->format($element->variants[$value->variant_product_id]->prices[0]->price_value,$element->variants[$value->variant_product_id]->prices[0]->price_currency_id).')';