Maldonado's signing indeed comes with "financial support".
Romain Grosjean and Pastor Maldonado to drive for Lotus F1 Team in 2014.
Pastor Maldonado: "It's been a great three years with this team, I had a nice moment with Frank and the team this morning and they will stay in my heart forever."
Xevi Pujolar: "In qualifying we had both cars on track at the right time, on the right tyres, but as the rain fell harder we struggled for grip."
Valtteri Bottas: "We will sit down and analyse the data to work out the best set-up for tomorrow."
Massa insists he will remain a "professional" racing driver in his own right at Williams.
The last Grand Prix for Pastor as a Williams driver after three seasons with the team.
"That's good news, isn't it?" Hulkenberg smiled after hearing about his options on Sunday, after finishing the US Grand Prix in a strong sixth place.
Pastor Maldonado had contact with Sutil's Force India on the first lap which forced him to pit early for a new front wing which compromised his strategy.
The Quantum group is led by Mansour Ijaz, who after playing down speculation in Abu Dhabi recently, has now travelled to Austin with the same message.
Pastor Maldonado's qualifying was hindered by traffic in Q1 which meant that he just missed out on Q2.