Aston Martin swept the top three positions in GS Sunday morning, including the fastest time of the weekend set by Scott Maxwell in the No. 55 Multimatic Motorsports Vantage with a lap of 1:56.936 (109.60mph). Multimatic took the top two times in the session, with TRG rounding out the top three in its Aston Martin debut. Stefan Mucke set the time for TRG at 1:57.201 (109.35mph), just off the session's second-fastest time set by David Empringham, 1:57.128 (109.42mph).

In ST it was Compass360 Racing alternating the top times in the session with James Colborn turning the fastest lap of the session and the weekend at 2:06.642 (101.20mph) in the No. 77 Honda Civic Si. Terry Borcheller came in second quickest with a lap of 2:07.191 (100.76mph) towards the end of the session, but was still 0.549sec behind Colborn.

The final Continental Tire Sports Car Challenge session of the weekend will be at 1:30 p.m. ET.

Aquilante leads Saturday

Andrew Aquilante proved he doesn't need a wet race track to set the quickest lap of the GS field, leading Saturday's final Continental Tire Sports Car Challenge practice session.

In ST, it was 2005 Rolex 24 winner Terry Borcheller at the top of the charts.After setting a fast time early, Aquliante's No. 35 Subaru Road Racing Team Subaru WRX-STI was briefly demoted by Bill Auberlen in the No. 96 Turner Motorsport BMW M3, but then put down a 1:57.486 (109.085mph), which held to the end of the one-hour session. Auberlen's time, a scant 0.002-second behind Aquilante, kept him in second. David Empringham was third in the No. 15 Multimatic Motorsports Aston Martin Vantage with a lap of 1:57.966 (108.641mph).

Borcheller put the No. 23 Burton Racing BMW 328i at the head of the ST class. The 2003 Rolex DP champion entered a hot lap of 2:07.043 (100.879mph), 0.247-second ahead of Andrew Jordan in the No. 77 Compass 360 Racing Honda Civic Si. Jordan snuck his fast lap in the closing seconds of the session, bumping Ryan Ellis in the No. 30 i-Moto Mazda Speed 3 to third in ST with a 2:07.418 (100.582mph).