Japanese GP: Williams preview quotes

Valtteri Bottas: "I drove in FP1 last year and Suzuka immediately became my favourite track because of the high speed and the special corner combinations. Sector 1 is especially fun to drive because it is a bit like a rollercoaster with its quick changes in elevation. The fans also make this a special race; they are very supportive and there are a lot of fans who support Finnish drivers. It can be difficult to overtake on this track so doing well in qualifying will be important, but the weather can be quite variable so that can open up opportunities to play with the strategy. Car set-up is difficult because of the mix of corners where you have long high speed corners combined with slower technical sections where you need good mechanical grip, so you have to compromise somewhat with car set-up."

Xevi Pujolar, chief race engineer: "Suzuka is a unique old-style circuit featuring a trademark figure-of-eight layout, with the back straight passing over the front section via an overpass. It's a challenging circuit for the cars and drivers with an above average level of overtaking, predominantly due to drivers making mistakes. Sector 1 is dominated by the level of downforce and fuel loads, whilst Sector 3 is dominated by drag. The layout leads to high average corner speeds, second only to Silverstone, as well as high average overall speed and power sensitivity. This also leads to high energy input into the tyres, which along with the circuit roughness can lead to tyre wear problems. Last year new storm water drainage systems were installed around the newly surfaced part of the track, and this may come in handy this year as, although the chance of rain is low, Tropical Storm DANAS is currently heading towards Japan and is expected to skirt the coastline over the next few days. It should pass through the area prior to qualifying and the race, but there is a chance that its direction and speed may not be as forecast."