Corey Spillman, Tammy Spillman, K.S., and M.S., minors, by and through their Next Friend Corey Spillman v. Sun Auto Tire & Service, Inc., d/b/a Plaza Tire Service

CourtDistrict Court, W.D. Missouri
DecidedJune 23, 2026
Docket6:24-cv-03221
StatusUnknown

This text of Corey Spillman, Tammy Spillman, K.S., and M.S., minors, by and through their Next Friend Corey Spillman v. Sun Auto Tire & Service, Inc., d/b/a Plaza Tire Service (Corey Spillman, Tammy Spillman, K.S., and M.S., minors, by and through their Next Friend Corey Spillman v. Sun Auto Tire & Service, Inc., d/b/a Plaza Tire Service) is published on Counsel Stack Legal Research, covering District Court, W.D. Missouri primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Corey Spillman, Tammy Spillman, K.S., and M.S., minors, by and through their Next Friend Corey Spillman v. Sun Auto Tire & Service, Inc., d/b/a Plaza Tire Service, (W.D. Mo. 2026).

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE WESTERN DISTRICT OF MISSOURI SOUTHERN DIVISION COREY SPILLMAN, TAMMY ) SPILLMAN, K.S., and M.S., minors, by ) and through their Next Friend Corey ) Spillman, ) ) No. 6:24-cv-03221-RK Plaintiffs, ) v. ) ) SUN AUTO TIRE & SERVICE, INC., d/b/a ) PLAZA TIRE SERVICE, ) ) Defendant. ) ORDER Before the Court are Defendant’s motion for summary judgment, (Doc. 100), and Plaintiffs’ motion to strike Exhibit E to Defendant’s motion for summary judgment—Tom Vadnais’ declaration, (Doc. 102). The motions are fully briefed. (Docs. 101, 103, 104, 105, 106, 107, 110, 111, 112.) After careful consideration and for the reasons explained below, the Court ORDERS that (1) Defendant’s motion for summary judgment is DENIED, and (2) Plaintiff’s motion to strike Exhibit E is GRANTED in part and DENIED in part. Background1 and Procedural Posture Plaintiff Corey Spillman bought his 2004 Ford Explorer Sport Trac (the “Vehicle”) in 2022. On April 4, 2024, Mr. Spillman took the Vehicle to a Plaza Tire Service (“Plaza Tire”) store in Springfield, Missouri.2 Mr. Spillman requested that two tires be replaced.3 Plaza Tire replaced the two front tires of the Vehicle and placed the two new tires on the front axle of the Vehicle. The two rear tires (which were not replaced) both had tire treads that were measured at “below

1 Except where otherwise noted, these facts are taken from the parties’ statements of uncontroverted facts. The Court has omitted facts properly controverted, facts asserted that are immaterial to the resolution of the pending motion, facts asserted that are not properly supported by admissible evidence, legal conclusions, and argument presented as an assertion of fact. 2 Plaza Tire is a brand of stores that is owned by Defendant Sun Auto Tire & Service, Inc. (“Sun Auto”). 3 Evidence in the record reflects that Plaintiff requested that Defendant “replace th[e] 2 worst tires.” (Doc. 101-3 at 1.) 3/32nds.” (Doc. 101-3 at 4.)4 Four days later, on April 8, 2024, Mr. Spillman and his family— Plaintiffs Tammy Spillman and their two minor children, K.S. and M.S.—began a road trip to Florida in the Vehicle. Plaintiffs drove for about twelve hours that day and stayed a night in Pensacola, Florida. On April 9, 2024, Plaintiffs continued their drive to their ultimate destination of Ocala, Florida. While travelling eastbound on Interstate 10, the right rear tire (the “Subject Tire”) on the Vehicle failed. This caused Mr. Spillman to lose control of the Vehicle, which flipped and landed near the tree line below the interstate. Plaintiffs’ expert opines that the Subject Tire suffered tread separation which resulted in a near instantaneous loss of inflation pressure. After the crash, Plaintiffs’ insurer—Progressive Insurance—took possession of the Vehicle (including the Subject Tire) and obtained the title to the Vehicle. Progressive placed a hold on the Vehicle to preserve it for the parties to have access to inspect the vehicle. At some point after the crash, the Vehicle and the Subject Tire were extensively photographed. Despite the hold on the Vehicle, Progressive Insurance sold the Vehicle on July 3, 2025, without first communicating with representatives for either Plaintiffs or Defendant, or more specifically, any counsel in this case. The Vehicle and Subject Tire were subsequently destroyed. Neither Plaintiffs nor Defendant had conducted a physical inspection of the Vehicle or Subject Tire prior to their destruction.5 Discussion The sole-remaining claim is Count 1, asserting a negligence claim against Defendant Sun Auto.6 Plaintiffs specifically allege that Defendant should have known that the Subject Tire was defective and in an unsafe condition due to a manufacturing defect, and thus should have been replaced rather than one of the front tires. At the summary judgment stage, Defendant argues that the unavailability of the Vehicle and Subject Tire for expert examination is fatal to Plaintiffs’

4 This fact is reflected in the invoice Plaintiff received from Defendant after service. This document recommended future replacement of the two rear tires because of the tread depths; it does not mention unequal tread wear. (Doc. 101-3 at 4.) It does not appear that the invoice states the tread depth on the old front tires which were replaced. 5 This issue was the previous subject of Plaintiffs’ motion for application of spoliation doctrine, (Doc. 68), which was later withdrawn by Plaintiffs and stricken from the record by the Court, (Docs. 91, 92). The facts as stated herein are adopted as uncontroverted by the parties in this case for the purposes of this summary judgment motion. Progressive Insurance is not a party to this case and has not had an opportunity to contest this version of events in the case before this Court. 6 Previously, Plaintiffs voluntarily dismissed Defendant Diane Guinn, (Doc. 21), and the Court granted motions to dismiss for lack of personal jurisdiction as to Ford Motor Company and Goodyear Tire & Rubber Company, (Doc. 39), against whom Plaintiffs asserted product liability tort claims. negligence claim because Plaintiffs cannot present any evidence why the Subject Tire failed. In support, Defendant’s expert, Tom Vadnais, opines that without being able to physically examine the Subject Tire, it is not possible to determine the cause of its failure. Plaintiffs move to strike Mr. Vadnais’ expert declaration on the basis that it is not supported by personal knowledge and lacks foundation. Because Plaintiffs’ motion affects which facts the Court may properly consider in deciding Defendant’s summary judgment motion, the Court begins there. I. Plaintiffs’ Motion to Strike Exhibit E Plaintiffs move to strike Exhibit E in support of Defendant’s motion for summary judgment—Tom Vadnais’ expert declaration, (Doc. 101-6). (Doc. 102.) Plaintiffs argue that the declaration lacks foundation and does not satisfy the affidavit requirements of Rule 56(c)(4) of the Federal Rules of Civil Procedure. More specifically, Plaintiffs suggest that the declaration was not made from Mr. Vadnais’ personal knowledge and did not otherwise set out that he is competent to testify on the matters stated. Defendant responds that Mr. Vadnais is an expert, that his declaration is a valid expert opinion, and that even if his declaration were inadmissible, his expert opinion could be presented in an admissible form at trial. Pursuant to Rule 56(c)(4), “[a]n affidavit or declaration used to support or oppose a [summary judgment] motion must be made on personal knowledge, set out facts that would be admissible in evidence, and show that the affiant or declarant is competent to testify on the matters stated.” While Rule 56(c)(4) itself does not contemplate or provide authority for striking declarations which do not comply with these requirements, the Eighth Circuit has held that “[a] declaration which does not satisfy these requirement[s] may be stricken or disregarded.” Jain v. CVS Pharm., Inc., 779 F.3d 753, 758 (8th Cir. 2015).7 The Court generally concludes that Mr. Vadnais’ declaration is proper and may be considered in deciding Defendant’s motion for summary judgment. Mr. Vadnais’ declaration states that he “ha[s] a degree in mechanical engineering from the University of Maryland” and that he has “been a tire engineer since graduating from [the University of] Maryland” in 1978. (Doc. 101- 6 at ¶ 1.) Mr. Vadnais’ CV is attached to the declaration. (Id. at ¶ 2; Doc. 101-7.) Based on these

7 Some district courts have favored disregarding non-compliant declarations rather than striking them, finding that motions to strike are procedurally limited to material contained in pleadings. See, e.g., Starks v. St. Louis County, No.

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Bluebook (online)
Corey Spillman, Tammy Spillman, K.S., and M.S., minors, by and through their Next Friend Corey Spillman v. Sun Auto Tire & Service, Inc., d/b/a Plaza Tire Service, Counsel Stack Legal Research, https://law.counselstack.com/opinion/corey-spillman-tammy-spillman-ks-and-ms-minors-by-and-through-mowd-2026.