If it's smart casual I'd steer clear of anything linen as by the time you arrive it will be crushed and crinkled. I don't think linen looks smart casual - just casual.
I'd go for dark coloured slim leg trousers ending at the ankle with a white cotton shirt and flat shoes. Dress it up with chunky jewellery and a good quality handbag.
Apart from the trousers and flat shoes, keep it smart. There's no such thing as smart-casual for women, just "smart" and " a bit scruffy". And make sure you have your hair in a wind- friendly do or it will be Wurzel Gummidge city at the first gust!
Hi Ladies, thank you all for your advice. I think I will go for the linen trousers and blouse combination and good tip about a jacket. I've been to Silverstone before but only walking round the track or in the stands where I could wear comfortable jeans and t-shirt. As you can gather I'm not one for dressing up, just prefer to be comfortable in my older years! Really looking forward to it though.
suzied gets it just right. At a motor racing circuit, I would wear practical shoes, flats or summer slip-ons. You may be walking on rough ground/grass. Also a light jacket, it is surprising how cool an outside event can be, especially if there is a breeze.
Some smart summer trousers, maybe linen, with a summer top (not t shirt) maybe a vintagey blouse should fit the bill. I am going to a smart/casual event on Saturday too, I will wear a mid calf length summer dress and silver sandals, but if chilly I will wear navy pleated trousers and a white cotton embroidered top.
I'm lucky enough to be invited to a corporate event at a motor racing event on Saturday (Silverstone), the invitation says smart/casual and I'm at a loss as to what to wear! I have tried on just about all the clothes in my wardrobe and can't decide, I don't wear dresses, am more comfortable in trousers. Help please? Thank you!