No it is a 3.5 twin turbo petrol in his region and other markets. In Australia they sell the 3.3 twin turbo diesel but also sell the 3.5 petrol in Lexus version.
Actually it’s twin turbo 3.4 petrol and TT 3.3 diesel. Here we also get a 4 liter naturally aspirated engine as well. Here nobody wants diesel cars. because of noise and smell so we only get petrol variants I’m getting one of these I just don’t know which yet. The twin Turbo has more power but I’d think the old 4 liter non turbo is more durable but has less power
He is in South Africa and the 300 Series was first released exclusively with the 3.5 V6 twin turbo petrol engine. Later on the 3.3 litre V6 twin turbo diesel became available but I believe it wasn't available at launch.